On November 3, 2026, the United States will hold midterm elections, which traditionally take place in the middle of a four-year presidential term. Formally, they are not directly tied to the presidency itself, but in practice, they are considered a dramatic electoral campaign that directly impacts the incumbent president's decisions in the second half of their term. On this day, American voters will determine the composition of the House of Representatives, a portion of the Senate, and state governors nationwide. Early voting has already begun weeks before the key date, and estimates suggest that with a turnout comparable to the 2022 midterms, over 100 million people could participate—though midterms typically attract fewer voters than presidential elections, where over 155 million votes were cast in 2024.
Record Political Ad Spending
The 2026 campaign has already broken financial records. As of October 12, $3.8 billion has been spent on political advertising—a record sum for midterm elections. According to AdImpact data, the highest advertising expenditures are concentrated in US Senate races in key battleground states: Texas, Ohio, and Michigan. A significant portion of the spending is provided by billionaire Elon Musk, who has reportedly spent about $366 million to support the Republican Party. This scale of financing reflects the high stakes of controlling Congress as both parties fight for majorities in both chambers.
Balance of Power in Congress and the Cost of Every Seat
Currently, the Republican Party holds the majority in the House of Representatives with 218 seats to the Democratic Party's 214; two seats are vacant, and there is one independent congressman aligned with Republicans. To take control of the House, Democrats need to pick up four more seats. The battle for the Senate is equally fierce: Republicans currently hold 53 seats to the Democrats' 47, and to flip the majority, Democrats also need to win four more seats. The final outcome could be decided by roughly ten congressional districts, including Maine, Ohio, North Carolina, Iowa, and Georgia, where the margins are tightest.
Factors That Could Determine the Outcome
Against this backdrop, the 2026 midterms present a tough test for President Donald Trump and the Republican Party, which currently controls both the Senate and the House. Midterms often serve as an opportunity for voters to evaluate the president's performance and can prompt adjustments to White House policies: if Republicans lose both chambers, passing key legislation in the second half of the term will become extremely difficult for the administration. According to a September Reuters/Ipsos poll, Trump's approval rating reached a record low of 32%. Domestic issues, particularly rising consumer prices, are likely to influence many races and could diminish support for the Republican Party. At the same time, there is evidence that Democratic voters show greater enthusiasm for participating than Republican voters, and Hispanic voters—a group that previously leaned toward supporting Trump—may swing back to the Democratic Party due to dissatisfaction with the economic situation and certain aspects of immigration policy. Meanwhile, a landslide Democratic victory is not guaranteed: Republicans can still capitalize on lingering skepticism toward their opponents and their campaign budget advantage.
Historical Context: Lessons from Past Midterms
Recent history shows just how powerful an impact midterm elections have on a nation's political course. In the 2010 midterms, under Democratic President Barack Obama, the Republican Party scored a major victory by picking up 63 seats in the House, driven by sluggish US economic growth and a lack of public support for the healthcare reform law—a cornerstone of Obama's presidency. This example illustrates a pattern observers link to the current 2026 campaign: midterms frequently act as a referendum on the sitting administration's policies and can significantly alter the balance of power in Congress for the remainder of the presidential term.
