Midterm math: How both sides tried to break the historical seat-loss curse

History suggests a consistent pattern in American politics: the president's party almost always loses seats in midterm elections. As voters head to the polls on Tuesday, November 3, 2026, this historical tendency looms large over the contest for Congress. The results of this election will determine who controls the legislative branch for the final two years of President Donald Trump's second term. Both political parties have spent months designing strategies to defy this statistical gravity, deploying different tools to protect their numbers or seize new power.

Republicans, who currently hold the White House, entered the cycle bracing for the possibility of losing the U.S. House of Representatives. Their strategy focused heavily on holding the Senate, where they maintain a slim majority. To achieve this, Republican committees outraised and outspent their Democratic counterparts, aided by funding from Trump-affiliated groups and prominent donors like Elon Musk. An analysis of advertising data found that 88.1 percent of Republican general election television spending targeted states and districts that Trump won in 2024. This approach reflects a defensive posture, aiming to lock in support in areas where the president's approval ratings, while low, may still offer a shield for Republican candidates.

Democrats, conversely, adopted a strategy of aggressive offense in the House while remaining cautiously optimistic about the Senate. The Democratic Congressional Campaign Committee, led by Chair Representative Suzan DelBene, emphasized voter anger as a driving force. DelBene stated that the American people are angry and want change. Democrats relied on the fact that they need a net gain of only three districts in the House to achieve a majority. They targeted specific seats where the 2024 presidential results suggested vulnerability, such as the 21 Democratic-held districts that voted for Trump in the general election. Their spending was more concentrated at the candidate level, where they managed to outraise their opponents despite the larger overall war chest of the Republican side.

Redistricting played a pivotal role in how both parties attempted to alter the board before the election. Six states, including California, Florida, Texas, and North Carolina, are using new congressional maps following mid-decade redistricting. Ohio also adopted a new map. Republicans argued that these new boundaries, drawn during a period of Republican control in many state legislatures, would help them retain seats. However, political analysts noted that new districts often vote differently than predicted, and some of the maps may not deliver the expected advantage. This uncertainty added a layer of complexity to the midterm pattern, forcing both sides to rely on ground game and polling as much as they relied on the geographic changes.

The economic mood of the country has become a central battleground, influencing how both parties framed their messages. Associated Press polling indicates that 35 percent of U.S. Adults approve of Trump's job performance, while only 25 percent approve of his handling of the economy. Approximately seven in ten Americans say the country is heading in the wrong direction. Democrats pointed to these numbers as evidence that voters are looking for a check on executive power. James Moore, a 57-year-old librarian in Raleigh, North Carolina, summarized this sentiment, noting that he is paying more for taxes, healthcare, and everything else. This economic anxiety contrasts with the view of voters like Mark Barker of Palm Beach Gardens, Florida, who believes Trump is doing an awesome job and has been following his lead closely.

In the Senate, the fight to break the midterm pattern is particularly delicate because Republicans can afford to lose only two seats to keep their majority. Democrats need a net gain of four seats. The Associated Press notes that one or two seats could tip the balance in either chamber. Key races in states such as Maine, Iowa, and Michigan are being watched closely. In Maine, Senator Susan Collins faces a competitive challenge from Troy Jackson, a race that the Associated Press attributes to economic strain and tariffs making the state more competitive. In Michigan, the race between Abdul El-Sayed and Mike Rogers has seen late-breaking endorsements, with El-Sayed's former primary opponent Haley Stevens backing Rogers. These close races represent the swing seats that could determine whether the historical pattern holds or breaks.

Governor's races also offer a chance for Democrats to shift the balance of power. Republicans have held a majority of governorships since 2010, but Democrats are hoping to take back that majority for the first time in two decades. This would require a net gain of two governorships. Races in states like Georgia, Nevada, and Ohio are viewed as competitive. In Georgia, former Atlanta Mayor Keisha Lance Bottoms is challenging Republican Rick Jackson. In Ohio, Vivek Ramaswamy is running against Amy Acton, a race that has been marked by a controversial advertisement featuring Acton's estranged mother. These state-level contests are crucial because they determine which party controls the statehouses that often serve as the base for future national candidates.

The administration has also been involved in legal and administrative actions that affect the election's administration. The Justice Department filed lawsuits in Alaska and California related to the certification of results and the handling of ballots cast by suspected noncitizens. Critics argue that these actions risk disenfranchising eligible voters and infringe on state authority, while supporters say they are necessary to ensure election integrity. A federal judge temporarily barred the administration from implementing a plan to prevent noncitizen voting, and another judge ordered the administration to stop demanding that California officials segregate specific ballots. These legal battles have added tension to the election day, with both parties monitoring the process closely.