During the 2008 primary season, a nonprofit corporation wanted to release a documentary criticizing a presidential candidate and advertise it on cable. A federal law said it couldn't — corporations were barred from spending their own treasury money on that kind of election-season political broadcast. The corporation sued, and in 2010 the Supreme Court agreed with it: that spending limit, the Court held, violated the First Amendment.
That single ruling — Citizens United v. FEC — rewired how money flows through American campaigns. Within months a new kind of organization appeared: the Super PAC, able to raise and spend unlimited sums to support or attack candidates, as long as it didn't coordinate with them.
But money is only one of the channels that connect citizens to government. Parties recruit the candidates. Interest groups press the demands. The media decides what the country even sees. Today's lesson is about those three linkage institutions — and the constitutional case that reshaped one of them.
Parties, interest groups, the media, and elections are the linkage institutions — the channels that connect citizens (their preferences, demands, and votes) to the government that is supposed to respond. This lesson covers three of them. None is mentioned by name in the Constitution; all are central to how the system actually works.
A political party is an organization that seeks to win elections and control government by running candidates under a shared label. Parties perform three core functions the exam tests:
Parties also write platforms (statements of their positions) and serve as a "big tent," assembling broad coalitions of groups into a governing majority.
Almost uniquely among democracies, the U.S. has a durable two-party system. The cause is structural, not cultural — and the AP exam wants the mechanism, not the personalities.
American elections use single-member districts with winner-take-all (plurality) rules: each district elects one representative, and whoever gets the most votes wins the entire seat. There is no prize for finishing second. This is the logic of Duverger's law: single-member-district, plurality systems tend toward two parties, because a vote for a third party is widely seen as "wasted," so voters and donors consolidate behind the two contenders who can actually win. Contrast this with proportional representation (used in many countries), where a party winning 12% of the vote wins roughly 12% of the seats — a rule that sustains multiple parties.
Other barriers reinforce the duopoly: ballot-access laws (signature and filing requirements that are harder for new parties to meet), the Electoral College's state-by-state winner-take-all allocation, campaign-finance advantages that flow to established parties, and the inclusion of major-party candidates (but usually not third-party ones) in nationally televised debates.
In Practice. When you're asked why the U.S. has two parties, the answer is the electoral structure — single-member districts and winner-take-all rules — not that Americans "only have two opinions." Reverse the causation and you lose the point: it's not that two parties produced single-member districts; it's that single-member districts produce two parties.
Party coalitions are not fixed. A party realignment is a sharp, lasting shift in the groups that make up each party's coalition, often triggered by a critical election that ushers in a new party era (for example, the New Deal realignment of the 1930s, which moved many voters into a Democratic coalition for a generation). Realignment changes which party voters attach to.
Dealignment is different: it's the trend of voters moving away from strong party attachment altogether, increasingly identifying as independents rather than as loyal partisans. Realignment = switching teams; dealignment = leaving the stands. The two are constantly confused (see section (f)).
Third parties (the Libertarian, Green, Reform, and others) rarely win, but they matter. They raise issues the major parties ignore, act as "spoilers" that can tip a close race by pulling votes from a major-party candidate, and sometimes push their issues into a major party's platform. The structural barriers above — single-member districts, ballot access, debate exclusion, finance — explain why they so seldom break through, even when many voters are dissatisfied with both major parties.
An interest group is an organization of people sharing a common goal who try to influence public policy — without running their own candidates for office (the key difference from a party). The pluralist theory of democracy sees this competition among many groups as healthy: policy emerges from the bargaining of organized interests, and no single group dominates.
Interest groups perform several functions: educating the public and officials, drafting and proposing legislation, mobilizing members, filing amicus curiae ("friend of the court") briefs, and lobbying. Lobbying is the direct attempt to influence policymakers — providing information and expertise, testifying, and pressing a group's case.
A central obstacle is the free-rider problem: when a group's goal is a collective good (a benefit everyone gets whether or not they joined — cleaner air, a tax cut for an industry), rational individuals are tempted to "free-ride," enjoying the benefit without paying dues or volunteering. This is why broad-interest groups struggle to organize while narrow groups with concentrated benefits (and selective incentives for members) organize more easily.
Interest groups also operate inside the iron triangle (revisited from Lesson 10): the stable, mutually beneficial alliance among an interest group, a congressional committee/subcommittee, and a bureaucratic agency in a single policy area. A looser, more fluid web of many actors — experts, think tanks, media, officials — around an issue is an issue network.
Money in elections is regulated by a framework the exam expects you to know in outline:
That restriction collided with the First Amendment in Citizens United v. FEC (2010). In a 5–4 decision written by Justice Anthony Kennedy, the Court held that the First Amendment bars the government from limiting independent political expenditures by corporations and unions — spending not coordinated with a candidate is protected political speech. (Full breakdown in section (d).) Applying that logic, a lower court in SpeechNow.org v. FEC (2010) struck down limits on contributions to groups that only make independent expenditures — giving birth to the Super PAC.
A Super PAC (independent-expenditure-only committee) may raise and spend unlimited sums to support or oppose candidates but may not contribute directly to candidates and may not coordinate with their campaigns. That is the bright line between a PAC (limited direct contributions to candidates) and a Super PAC (unlimited independent spending, no direct contributions). The era of large independent expenditures — and the "dark money" channeled through groups that need not fully disclose their donors — followed.
This is a genuine debate, and the exam expects neutrality. Supporters say independent spending is protected free speech and that more political speech informs voters; critics say it amplifies the loudest wallets and risks corruption or its appearance. Present both.
The media connect citizens to government by performing several functions:
The media environment has shifted from a few broadcast networks (mid-20th century) to cable (24-hour news), to the internet and social media — producing media fragmentation: audiences split across many narrow, often ideologically sorted outlets. Critics point to "horse-race" coverage (who's ahead in the polls rather than policy substance), and to debates over media bias and misinformation. On these debates, take no side: describe the competing claims, the evidence each cites, and let the student weigh them.
Context. Citizens United is a conservative nonprofit corporation. In 2008 it produced Hillary: The Movie, a documentary sharply critical of then-presidential candidate Hillary Clinton, and wanted to distribute it on video-on-demand and run ads during the primary season. Doing so would have violated the Bipartisan Campaign Reform Act (BCRA), which barred corporations and unions from using general-treasury funds for "electioneering communications" and independent expenditures expressly advocating a candidate's election or defeat near an election. Citizens United sued the Federal Election Commission, arguing the restriction violated the First Amendment.
The constitutional core. The case turns on a principle traceable to Buckley v. Valeo (1976): that spending money to spread political messages is a form of protected speech. The question was whether that protection extends to independent expenditures by corporations and unions — and the Court held that it does.
Key idea (from Justice Kennedy's majority opinion). The government "may not suppress political speech on the basis of the speaker's corporate identity." Political speech, the majority reasoned, "is indispensable to decisionmaking in a democracy, and this is no less true because the speech comes from a corporation."
Notably, the Court upheld BCRA's disclosure and disclaimer requirements (by an 8–1 margin): the government may require spenders to say who they are, even as it may not cap independent spending.
How it's used on the AP exam. Citizens United is the required case for campaign finance and for First Amendment free speech applied to political spending. It is the natural partner for a SCOTUS-comparison FRQ with a non-required case such as Buckley v. Valeo or McCutcheon v. FEC — the shared thread is money spent on political expression is speech the government may not freely restrict. Cite it for any argument about parties, interest groups, Super PACs, or the balance between free speech and the regulation of money in elections.
Facts of the case. Citizens United, a nonprofit corporation, produced Hillary: The Movie, a film criticizing presidential candidate Hillary Clinton, and sought to distribute it via video-on-demand and advertise it during the 2008 primaries. The Bipartisan Campaign Reform Act (BCRA, 2002) prohibited corporations and unions from using their general-treasury funds for "electioneering communications" and independent expenditures advocating a candidate's election or defeat. Citizens United challenged that prohibition as a violation of the First Amendment.
Constitutional question. Does prohibiting corporations and unions from making independent expenditures for political speech violate the freedom of speech guaranteed by the First Amendment?
Holding. Yes. By a 5–4 vote, the Court held that the First Amendment prohibits the government from restricting independent political expenditures by corporations and unions, striking down BCRA's limits on corporate/union independent spending (while upholding its disclosure and disclaimer requirements).
Reasoning. Justice Anthony Kennedy, writing for the majority, reasoned that political speech is essential to democratic self-government and that the First Amendment protects it regardless of the speaker's corporate identity; banning a corporation's or union's independent expenditures is a restriction on speech itself. The majority concluded that independent expenditures — spending not coordinated with a candidate's campaign — do not give rise to corruption or its appearance in the way that direct contributions might, so the government's anti-corruption interest could not justify the ban. The decision overruled the contrary holding of Austin v. Michigan Chamber of Commerce (1990). In dissent, Justice Stevens argued that corporations are not ordinary "speakers," that their wealth can distort elections, and that the government has a legitimate interest in limiting their electoral influence.
Impact / connections. Citizens United unleashed large independent expenditures. Months later, applying its logic, the D.C. Circuit in SpeechNow.org v. FEC (2010) struck down limits on contributions to independent-expenditure-only committees, creating the Super PAC. The case extended the free-speech principle of Buckley v. Valeo (1976) — that political spending is speech — to corporations and unions, and is the anchor of every modern campaign-finance and "dark money" debate. It pairs naturally with Schenck and Tinker as a First Amendment free-speech case (here, money-as-speech rather than words or symbols).
Use the four-step move: Identify the issue → State the principle → Apply it → Predict the outcome.
Scenario 1 — A third party under single-member districts. A new national party wins 15% of the vote in every congressional district but does not finish first in any of them. Its supporters are baffled that it holds zero seats in the House.
Scenario 2 — An interest group lobbying. A trade association representing solar manufacturers meets with members of a House energy subcommittee, supplies technical research, testifies at hearings, and files an amicus brief in a related case.
Scenario 3 — A Super PAC's independent spending. A Super PAC raises \$40 million from corporations and wealthy donors and spends it on ads attacking a Senate candidate. It gives the opposing campaign no money and never coordinates with it.
PAC vs. Super PAC. A PAC makes limited, regulated contributions directly to candidates. A Super PAC makes unlimited independent expenditures and cannot contribute directly to or coordinate with candidates. Unlimited + independent + no direct giving = Super PAC.
Hard money vs. soft money. Hard money = regulated, limited, disclosed money given directly to candidates/parties. Soft money = formerly unregulated, unlimited money to parties for "party-building," banned for national parties by BCRA (2002). If it's capped and disclosed, it's hard money.
Realignment vs. dealignment. Realignment = a durable shift in which party groups belong to (often via a critical election). Dealignment = voters drifting away from parties altogether toward independent identification. Switching teams vs. leaving the stands.
Party vs. interest group. Both try to influence government, but a party runs its own candidates under a label to control government; an interest group does not run candidates — it tries to influence whoever wins. If it nominates candidates, it's a party.
Single-member districts cause the two-party system — not the reverse. The mechanism runs one way: single-member, winner-take-all districts → two parties (Duverger's law). Don't write that two parties created single-member districts, and don't attribute the two-party system to American "culture" or "only two opinions."
Citizens United did NOT allow unlimited direct contributions to candidates, and did not strike down disclosure rules. It protected independent expenditures by corporations/unions and upheld disclosure. Saying it "let corporations give unlimited money straight to candidates" is wrong.
1. B. Core party functions include recruiting/nominating candidates and organizing government. A is the courts; C — elections are run by states, not parties; D is Congress's power, not a party function.
2. C. The structural cause is single-member districts with winner-take-all/plurality rules (Duverger's law). A and B are false; D would sustain multiple parties, not two.
3. B. Duverger's law: single-member-district, plurality systems tend toward two parties. A reverses it (PR sustains many parties); C and D are unrelated claims.
4. B. A realignment is a durable shift in the group coalitions behind each party. A describes dealignment; C is a third-party surge; D is a rules change.
5. C. A party runs candidates under a label to control government; an interest group does not run candidates. A and B are false (groups influence policy and lobby); D misstates registration rules.
6. A. The free-rider problem burdens broad public-interest groups (collective goods) and explains why narrow groups with concentrated benefits organize more easily. B–D are unrelated.
7. B. An iron triangle links an interest group, a congressional committee, and a bureaucratic agency in one policy area. The others misdescribe it.
8. B. BCRA / McCain-Feingold (2002) banned national-party soft money and restricted corporate/union electioneering communications. A, C, and D are false.
9. C. Citizens United held the First Amendment bars limiting independent expenditures by corporations and unions. A is wrong (it did not permit unlimited direct contributions); B is wrong (disclosure was upheld); D is the opposite of the holding.
10. B. A Super PAC makes unlimited independent expenditures but cannot contribute to or coordinate with candidates. A describes something no committee may do; C and D are false.
11. A. Deciding which stories get covered is the gatekeeper function. The others are not media roles.
12. B. Horse-race coverage emphasizes who's ahead in the polls over policy substance. A, C, and D describe other kinds of coverage.
| Election cycle | Super PAC independent expenditures (approx.) |
|---|---|
| 2008 (pre–Citizens United) | \$0 (Super PACs did not yet exist) |
| 2012 | ~\$0.6 billion |
| 2020 | ~\$2.1 billion |
Which conclusion is best supported by the data?
13. B. Super PAC independent expenditures emerged only after Citizens United (2010) and rose substantially through 2020 (~\$0.6B → ~\$2.1B). A contradicts the data; C is unsupported; D is false (disclosure was upheld, and the table doesn't address it).
14. B. A rising share of independents and weakening party attachment is dealignment. A (realignment) is about switching coalitions, not leaving them; C and D are unrelated mechanisms.
15. B. (SCOTUS comparison) Both Buckley and Citizens United rest on the Free Speech Clause of the First Amendment — political spending as protected speech. A, C, and D are different provisions not at issue.
This is FRQ 3, the SCOTUS Comparison, scored on the official AP Gov 4-point rubric. You are given a non-required case and asked to compare it to a required case — here, Citizens United v. FEC (2010).
Buckley v. Valeo (1976) — non-required case. After the Watergate scandal, Congress amended the Federal Election Campaign Act (FECA) to impose strict limits on both contributions to candidates and independent expenditures (money spent on political messages independently of a campaign), and on how much candidates could spend of their own money. A group of plaintiffs challenged the limits as violations of the First Amendment. The Supreme Court upheld the limits on contributions to candidates (reasoning they help prevent corruption or its appearance) but struck down the limits on independent expenditures and on candidates' spending of their own funds, holding that spending money to spread political messages is protected political speech that the government may not freely restrict.
Based on the information above, respond to the following:
(A) Identify the constitutional clause or provision that is common to both Buckley v. Valeo (1976) and Citizens United v. FEC (2010).
(B) Based on the constitutional clause or provision identified in part (A), explain why the facts of Buckley v. Valeo led to a holding similar to the holding in Citizens United v. FEC.
(C) Explain how an interest group could use the holding in Citizens United v. FEC to influence the outcome of elections.
The SCOTUS Comparison is 4 points, in three tasks: 1. Part A — Identify (1 pt): name the specific clause/provision shared by both cases. "The First Amendment" is acceptable; "the Free Speech Clause of the First Amendment" is safer. 2. Part B — Explain the comparison (2 pts): state the holding/reasoning of the required case and tie it to the facts of the given case through the identified clause (1 pt for accurately explaining the required case's reasoning; 1 pt for connecting it to the non-required case's facts/holding). 3. Part C — Apply/extend (1 pt): do the additional task (here, explain how a political actor responds to or uses the holding).
(A) Identify. The constitutional provision common to both cases is the Free Speech Clause of the First Amendment, which protects political speech — including the spending of money to communicate political messages — from government restriction.
(B) Explain the comparison. In Citizens United v. FEC (2010), the Court held that the First Amendment bars the government from limiting independent political expenditures by corporations and unions, reasoning that spending on political communication is protected speech and that independent spending — uncoordinated with a candidate — does not create the corruption that would justify restricting it. The facts of Buckley v. Valeo led to a similar holding on the same constitutional ground: there, too, the challenged law capped independent expenditures on political messages, and the Court, applying the Free Speech Clause, struck those caps down because spending money to spread a political message is speech the government may not freely limit. In both cases the Court treated independent political spending as protected speech under the First Amendment; Citizens United extended Buckley's logic to corporate and union spenders. (Note the limit of the parallel: Buckley upheld limits on direct contributions to candidates as anti-corruption measures — only the independent-expenditure halves of the two cases align.)
(C) Apply/extend. An interest group could use the Citizens United holding by forming or funding a Super PAC — an independent-expenditure-only committee that, after Citizens United and SpeechNow.org v. FEC, may raise and spend unlimited sums on advertising that supports or attacks candidates, so long as it does not contribute directly to or coordinate with a campaign. By pouring unlimited independent expenditures into ads in a competitive race, the group can shape the information voters see and influence the election's outcome — all as constitutionally protected speech.
| Rubric element | Earned? | Why |
|---|---|---|
| (A) Identify (1 pt) | ✔ | Names the Free Speech Clause of the First Amendment, the provision shared by both cases. |
| (B) Holding/reasoning of required case (1 pt) | ✔ | Accurately states Citizens United's holding and free-speech reasoning. |
| (B) Connect to non-required case (1 pt) | ✔ | Ties Buckley's independent-expenditure facts/holding to the same clause and to Citizens United. |
| (C) Apply/extend (1 pt) | ✔ | Explains a concrete use of the holding (forming a Super PAC for unlimited independent spending). |
Score: 4/4.
1. B. Core party functions include recruiting/nominating candidates and organizing government. A is the courts; C — elections are run by states, not parties; D is Congress's power, not a party function.
2. C. The structural cause is single-member districts with winner-take-all/plurality rules (Duverger's law). A and B are false; D would sustain multiple parties, not two.
3. B. Duverger's law: single-member-district, plurality systems tend toward two parties. A reverses it (PR sustains many parties); C and D are unrelated claims.
4. B. A realignment is a durable shift in the group coalitions behind each party. A describes dealignment; C is a third-party surge; D is a rules change.
5. C. A party runs candidates under a label to control government; an interest group does not run candidates. A and B are false (groups influence policy and lobby); D misstates registration rules.
6. A. The free-rider problem burdens broad public-interest groups (collective goods) and explains why narrow groups with concentrated benefits organize more easily. B–D are unrelated.
7. B. An iron triangle links an interest group, a congressional committee, and a bureaucratic agency in one policy area. The others misdescribe it.
8. B. BCRA / McCain-Feingold (2002) banned national-party soft money and restricted corporate/union electioneering communications. A, C, and D are false.
9. C. Citizens United held the First Amendment bars limiting independent expenditures by corporations and unions. A is wrong (it did not permit unlimited direct contributions); B is wrong (disclosure was upheld); D is the opposite of the holding.
10. B. A Super PAC makes unlimited independent expenditures but cannot contribute to or coordinate with candidates. A describes something no committee may do; C and D are false.
11. A. Deciding which stories get covered is the gatekeeper function. The others are not media roles.
12. B. Horse-race coverage emphasizes who's ahead in the polls over policy substance. A, C, and D describe other kinds of coverage.
13. B. Super PAC independent expenditures emerged only after Citizens United (2010) and rose substantially through 2020 (~\$0.6B → ~\$2.1B). A contradicts the data; C is unsupported; D is false (disclosure was upheld, and the table doesn't address it).
14. B. A rising share of independents and weakening party attachment is dealignment. A (realignment) is about switching coalitions, not leaving them; C and D are unrelated mechanisms.
15. B. (SCOTUS comparison) Both Buckley and Citizens United rest on the Free Speech Clause of the First Amendment — political spending as protected speech. A, C, and D are different provisions not at issue.
| Pt | Rubric row | Awarded when the response… |
|---|---|---|
| 1 | (A) Identification | Identifies the First Amendment / Free Speech Clause as the provision common to both cases. |
| 2 | (B) Required case | Accurately explains the holding and free-speech reasoning of Citizens United (independent expenditures by corporations/unions are protected speech). |
| 3 | (B) Comparison | Explains how Buckley's facts (limits on independent expenditures) led to a similar holding based on the identified clause. |
| 4 | (C) Application | Explains a concrete way an actor uses the holding (e.g., an interest group forms a Super PAC to make unlimited independent expenditures). |
Always defer to the official College Board rubric for your exam year. FRQ 3 (SCOTUS Comparison) is scored out of 4 points: Identify the common provision (A), explain the comparison through that provision (B), and complete the applied/extension task (C).
GovIQ · Lesson 23 of 25 · Unit 5: Political Participation
This lesson is exam-prep material and is not affiliated with, endorsed by, or sponsored by the College Board, which produces the AP® US Government and Politics exam. AP® is a registered trademark of the College Board. Supreme Court opinion quotations are drawn from public-domain texts; spending figures in section (g) are approximate, rounded illustrations for data-interpretation practice and should be verified against current FEC and OpenSecrets data.
Content pending external review (government/poli-sci reviewer).