Democrats Face Obstacles to a Midterm Landslide Despite Favorable Polls

Democrats head into Tuesday's midterm elections with political conditions that appear favorable: President Donald Trump's approval ratings are low, voters remain concerned about high prices, and the Iran war has generated dissatisfaction. Yet six analysts and party strategists told Reuters that those advantages might not produce a landslide, even if Democrats increase their representation in Congress.

Recent polling suggests Democrats are becoming more competitive in districts previously considered reliably Republican, prompting the party to broaden its campaign into conservative territory. However, polarization and redistricting, including gerrymandering, have substantially reduced the number of closely contested House seats over three decades. Analysts estimate that only 40 to 50 of the chamber's 435 seats are genuinely competitive this year.

Most analysts expect Democrats to regain the House, but anticipate a majority of perhaps five to 20 seats. That leaves less opportunity for the kind of advance the party achieved in 2018, when it gained 41 seats. Bill Galston, a former adviser to President Bill Clinton, said even a gain of 25 seats would deliver a working majority rather than a large one, leaving Democrats limited flexibility on contentious legislation.

The Senate presents a steeper challenge. Democrats need a net gain of four seats to secure a 51-to-49 majority, and several leading targets are in states Trump won comfortably in 2024. Cook Political Report analyst David Wasserman said even a national shift of 10 percentage points toward Democrats would probably leave them two seats short. Races in Maine, New Hampshire and Michigan are also proving tougher than Democrats had hoped, according to University of Tennessee, Knoxville, professor Andrew Busch.

Turnout could further complicate Democratic expectations. Although surveys show greater enthusiasm among Democratic voters, young, Black and Hispanic voters have historically participated less in midterms than in presidential elections. Polling also indicates continuing skepticism toward both parties among these groups, particularly about living costs. Early voting figures from states registering voters by party suggest stronger Democratic engagement, while Republicans say many supporters prefer voting on Election Day.

Republicans also entered the final campaign weeks with a cash advantage of several hundred million dollars across national committees and major allied super PACs, according to filings and Federal Election Commission data. Trump spent more than $277 million, largely through MAGA Inc., on late television and direct-mail efforts. Elon Musk spent roughly $366 million supporting Republicans during the cycle, including $276 million since July. AdImpact reported that Republican Senate battleground advertising spending exceeded Democrats' by $188 million through September.

Polling provides another source of uncertainty. Reuters/Ipsos surveys put Democrats ahead of Republicans by 47% to 35% among registered voters on the generic congressional ballot. But polls have repeatedly understated Republican support, with the biggest misses occurring when Trump was a candidate. He is not on this year's ballot but has asked supporters to vote as though he were. Midterm polling underestimated Republicans in 2014 and Democrats in 2022.

Republican efforts to portray Democrats as socialists could also affect close contests. Candidates are highlighting primary victories by progressives and members of the Democratic Socialists of America movement, although fewer than two dozen won this year. Some Democrats in competitive races have responded by emphasizing their support for capitalism. Galston said the attacks could trim the Democratic advantage by one or two percentage points in tight races.