Case Study 1: The 2024 Presidential Election as Coalition Shift and Electoral College Math

Case studies in this textbook are analytical, not partisan. The 2024 election produced a Republican popular-vote and Electoral College victory; the analytical task is to understand what changed in the American electorate, what the campaigns did, and how the structural features of the system interacted with the political environment. The case is taught the same way at Berkeley, at Liberty University, and everywhere in between.

What happened

On November 5, 2024, Donald Trump was elected to a second non-consecutive term as President of the United States. The electoral count was 312 to 226. The popular vote count, certified across the states by mid-December, was approximately:

• Donald Trump (R): 77.3 million votes (49.8%)
• Kamala Harris (D): 75.0 million votes (48.3%)
• Other (Stein, RFK Jr., Oliver, others): ~3 million votes (~1.9%)

Trump's popular-vote margin was approximately 1.5 percentage points. This was the first Republican popular-vote victory in a presidential election since George W. Bush's 2004 reelection over John Kerry. It ended a four-cycle stretch in which the Republican candidate had lost the popular vote (2008, 2012, 2016, 2020).

Trump won every one of the canonical six battleground states: Pennsylvania (+1.7), Michigan (+1.4), Wisconsin (+0.9), Georgia (+2.2), Arizona (+5.5), and Nevada (+3.2). He also won North Carolina (+3) and ran up larger margins in Florida (+13) and Ohio (+11), confirming those states' departure from battleground status.

Background: how we got to November 5

The 2024 cycle had the most disrupted candidate-selection sequence in modern history. President Biden had been the Democratic incumbent and was on track to be renominated through the spring of 2024, despite consistent polling showing him trailing Trump in head-to-head matchups in the battleground states. After a poor performance in the June 27 debate at CNN's Atlanta studio, Democratic donors and elected officials began openly questioning whether Biden could win in November. The president was diagnosed with COVID-19 in mid-July, retreated to the Delaware beach house, and on July 21 announced he would not seek the Democratic nomination. Vice President Kamala Harris received Biden's endorsement within hours.

The Democratic Party processed Harris's de facto nomination through a virtual roll call of pledged delegates in early August. The Democratic National Convention in late August, held in Chicago, ratified the choice. Harris named Minnesota Governor Tim Walz as her running mate, citing Walz's appeal to rural and small-town Midwestern voters and his successful gubernatorial record on family-friendly economic policies. Trump's running mate, selected at the Republican National Convention in mid-July, was Senator JD Vance of Ohio, whose 2016 Hillbilly Elegy memoir and post-Senate evolution from Trump critic to Trump supporter had become a vehicle for arguments about working-class realignment.

The general election ran from August through November on a compressed timeline. Harris's truncated rollout meant that key elements of a normal presidential campaign — the introduction-to-the-country phase, the policy-rollout phase, the long debate-prep phase — had to be done in weeks rather than months. The single Trump-Harris debate on September 10 in Philadelphia was widely judged to have favored Harris on style points; polling moved slightly toward her in the following days but by mid-October had returned to baseline, with the race within 1–3 points in all six battlegrounds.

The economy and the inflation question

The dominant issue across most polls was the economy and inflation. Cumulative inflation from 2021–2024 totaled approximately 20% — the highest sustained inflation period since the early 1980s. Real wages had recovered most but not all of the loss by mid-2024. Public perceptions of the economy remained negative throughout the year, even as macroeconomic indicators (unemployment near 4%, GDP growth above 2%, the stock market hitting record highs) suggested an objectively healthy economy.

The empirical story is unsettled but consequential: voters consistently rated the economy as in poor condition, particularly on the cost of groceries, housing, and rent. The "vibes recession" or "perception gap" was much-discussed in political-science literature of 2024–2025. Whether this was a story about (a) accumulated inflation memory, (b) media coverage emphasizing prices over wages, (c) partisan motivated-reasoning about Biden's economy, or (d) actually-felt distress masked by aggregate numbers — the explanations varied. The political effect, regardless, was clear: voters who said the economy was the most important issue broke for Trump by 15-20 points.

The border was the second-most-cited issue. Border encounters had risen sharply during the Biden administration, peaking around 250,000 monthly encounters in late 2023 before declining substantially in 2024 after a series of Biden executive actions and a bilateral agreement with Mexico. Voters who said immigration was the most important issue broke for Trump by 30-40 points.

The coalition shift

The 2024 election extended several demographic shifts that had been visible in 2020 and accelerated in 2024.

Education realignment, continued. College-educated voters continued to shift Democratic; non-college voters continued to shift Republican. Among white voters, the realignment had been substantially complete by 2020. The new development in 2024 was that the realignment extended to non-white voters: college-educated Hispanic and Asian-American voters held the Democratic line, while non-college Hispanic and Asian-American voters shifted toward Republicans. Education is not a perfect proxy for class, but it has become the single best demographic predictor of vote choice.

Hispanic shift toward Republicans. Hispanic voters, who had been voting roughly 65-30 Democratic for several decades, voted approximately 53-46 Democratic in 2024 — an extraordinary shift, particularly among Hispanic men, where the split was approximately even. The shift was concentrated among working-class, non-college Hispanic voters, especially in Texas (Rio Grande Valley), Florida, and Arizona; less pronounced among college-educated Hispanics and in heavily Democratic urban areas. Multiple explanations have been offered: the salience of the economy and the border, religious-conservative cultural appeals, partisan mobilization differences, and disenchantment with the Democratic Party's emphasis on identity-based political appeals. The phenomenon is the subject of intense post-election analysis; final validated-voter analyses from Pew and Catalist will refine the numbers.

Black male shift toward Republicans. Black voters as a whole continued to vote heavily Democratic (approximately 83-15). However, Black men shifted from approximately 12% Republican in 2020 to approximately 21% Republican in 2024 — a shift of about 9 points. The shift was concentrated among younger Black men. Black women continued to vote 90-9 Democratic, the most heavily Democratic single demographic.

The "double haters" and the marginal voter. A relatively new analytic category — voters with unfavorable opinions of both major candidates — broke for Trump in 2024 after splitting roughly evenly in 2016 and breaking for Biden in 2020. This group was small (perhaps 10-15% of voters) but disproportionately concentrated in battlegrounds.

Suburban patterns. Educated suburban voters held the Democratic line they had established in 2018 and 2020. Some suburban areas (Cobb, Gwinnett in Georgia; Maricopa in Arizona; Bucks, Chester in PA) shifted slightly Republican from 2020, but not enough to flip from their 2020 Democratic alignment.

The campaign tactics

Trump's campaign emphasized retail rallies, social-media presence (especially X/Twitter and the campaign's TikTok account), digital advertising targeting non-college and Hispanic voters, and a less-traditional ground game that relied substantially on aligned outside groups (Turning Point Action, AFP) for door-knocking. The campaign's media strategy departed from the traditional model: Trump did long-form podcasts (Joe Rogan, Theo Von, Lex Fridman) reaching audiences traditional campaigns underused. Harris did some of the same, including a Joe Rogan appearance discussion that did not materialize. The "manosphere" reach of Trump's media strategy was widely cited in post-election analyses as a meaningful contributor to the Black-male and Hispanic-male shifts.

Harris's campaign emphasized traditional Democratic infrastructure: extensive paid television in battleground markets, surrogate operations with a deep bench (Walz, the Obamas, Biden, Bill Clinton, prominent Democratic governors), and a substantial ground game in the canonical six battlegrounds. The campaign raised approximately $1 billion in 100 days — historic numbers — but allocated roughly the standard 60-70% to paid media. Critics post-election argued the campaign was too cautious in its messaging on the economy and the border, while defenders argued that the campaign's choices reflected the constraints of a 100-day sprint.

Both campaigns spent heavily on digital, and both deployed extensive voter-data operations. The Republican operation (the joint RNC-Trump operation, supplemented by outside groups) was less heavily invested in field than the Democratic operation, but more invested in digital and earned-media strategy. Whether the differential allocation matters at the margin will be debated for years.

The Electoral College math

In the Electoral College, Trump's 312 electoral votes broke down as:

• The Trump 2020 baseline (states he won in 2020): 232 EV.
• Recovered swing states from 2020 (PA, MI, WI, GA, AZ, NV): +77 EV.
• Plus Maine 2nd CD (1 EV), the same congressional district that has split with the state since 1972.
• Plus the small reapportionment shifts (mostly to Republican-favored states).
• Less North Carolina (which Trump won in 2020 and 2024, no change).

Total: 312 EV.

Harris won 226 EV: the 19 states-plus-DC won by Biden in 2020 by 5+ points, which after reapportionment net to about 226 EV.

Notably: Harris won every state Biden won in 2020 by more than 5 points, plus most of the 5%-or-greater margin states. Trump won every state he won in 2020 (no Democratic recoveries) plus the six battlegrounds he had lost in 2020.

The tipping-point state for Trump was Pennsylvania. With Pennsylvania's 19 EV, Trump cleared 270 with the smallest margin among the states he needed (about 1.7 points). If Harris had narrowly won Pennsylvania, the total would have been Trump 293 to Harris 245 — Trump would still have won, because his Wisconsin and Michigan margins (despite being smaller than Pennsylvania's) would have been wins. So while Pennsylvania was the tipping point, Wisconsin and Michigan were the critical states.

What the result revealed about the system

The 2024 election was simultaneously a normal democratic transition (vote, count, certify, peaceful transfer of power) and a notable institutional moment.

• The popular vote and Electoral College aligned. For the first time since 2004, both processes produced the same result. The 2024 cycle did not test the popular-vote / Electoral-Vote-gap question that had been central to the 2016 and 2020 debates.
• The certification process worked. The Electoral Count Reform Act of 2022 had clarified procedures after the chaos of January 6, 2021. The 2024 certification proceeded normally, with the joint session of Congress on January 6, 2025 officially counting electoral votes without incident.
• The peaceful transfer of power was completed. President Biden conceded promptly, hosted Trump at the White House on November 13, and delivered a televised speech committing to a smooth transition. Trump took the oath of office on January 20, 2025.
• Election administration was generally smooth. Despite some polling-place disruptions and high-profile lawsuits, the basic infrastructure of voting and counting worked. Reform efforts after 2020 — including in Pennsylvania, where mail-ballot processing had been clarified — visibly improved counting speed.

The deeper analytical question for political scientists is whether 2024 represents a structural realignment or a single-cycle anomaly. Several features point to structural change: the educational realignment is persistent across multiple cycles; the Hispanic shift, if confirmed by validated-voter analysis, would extend a pattern visible in 2020; the Republican popular-vote victory ends a 20-year stretch of Republican popular-vote losses. Other features suggest cycle-specific factors: inflation was unusually salient; Harris had only 100 days to campaign; Trump's third presidential candidacy in eight years has unique dynamics. The answer will be clearer after 2026 and 2028.

For the purposes of this chapter, the takeaway is more modest: 2024 was an instance of the electoral system functioning according to the design described in this chapter. The Electoral College allocated electors as the rules specified. The battleground states were where the campaign was fought. The primary calendar (a Democratic process truncated by Biden's withdrawal; a Republican process settled by Super Tuesday) shaped both nominations. The patterns of TV ad concentration, ground-game investment, and decision-desk timing all matched the structural account in this chapter. The system worked, and produced a winner.

What that winner does next — and how the political coalitions reshaped by 2024 evolve — is the subject of subsequent chapters.

Discussion questions

1. Of the explanations offered for the Hispanic shift toward Republicans (economy, border, religion, mobilization, identity politics fatigue), which do you find most plausible? Use the framework from Chapter 22 on voting behavior to test your answer.
2. The Harris campaign had 100 days; Trump had 18 months as the presumptive nominee plus several years of post-2020 organizing. How much did the timing differential affect the result, and how much was the result determined by the underlying coalition shifts that were already visible in mid-2024 polling?
3. The 2024 result aligned the popular vote and the Electoral College for the first time since 2004. Does this reduce the urgency of Electoral College reform, or does the structural pattern (Republican popular wins typically larger than Electoral College wins; Democratic popular wins not always sufficient for Electoral College wins) remain a concern? Steel-man both views.