US midterms: Democrats eye control of Congress as poll numbers slide for Republicans

With exactly one month to go before the US midterm elections, Democrats are widening their path to congressional power. Polling and political analyses suggest the party is well-placed to win a majority in the House of Representatives, while their prospects of capturing the Senate are rising as the campaigns enter their final, high-intensity stretch.

The 3 November elections represent a massive reshuffle of the American political system. On the ballot are all 435 seats in the House of Representatives and 34 of the 100 Senate seats. Voters will also decide 36 state governorships, three territorial governor races, and hundreds of local contests that could reshape policy on everything from healthcare to voting laws.

Why are the Republicans struggling?

For Republicans, the electoral map is becoming increasingly difficult to defend, heavily weighed down by voter anxiety over the state of the economy. A recent AP-NORC poll revealed that just 26 per cent of Americans approve of Donald Trump's handling of economic policy. That low figure has left Republican candidates struggling to defend the administration's record, even in districts that have historically leaned conservative.

What is at stake in the Senate?

But while the House appears to be tilting towards a Democratic majority, the battle for the Senate is far more volatile. Speaking on Univision, political analyst Andrés Echevarría noted that several key states remain highly contested, with neither party secure in its path to a majority. Because the Senate is so closely divided, even a single seat flipping could hand control of the chamber to the Democrats.

If Democrats successfully secure majorities in both the House and the Senate, they will gain the power to freeze the conservative legislative programme, launch sweeping congressional investigations, and block future judicial appointments. For the administration, retaining the Senate is now a defensive necessity to prevent complete legislative deadlock.

Local battles and the final stretch

Beyond the national stage, the gubernatorial contests in 36 states and three territories will decide who controls key state-level policies ahead of the next presidential election cycle. These local races often hinge on different dynamics than the national fight, but with political polarisation at an all-time high, national issues are heavily influencing local voters.

With voter registration deadlines closing in—including a 5 October deadline in several key states—campaigns are pouring hundreds of millions of dollars into final advertising blitzes and get-out-the-vote efforts. Whether the current Democratic momentum can survive a month of intense counter-attacks from the Republican base remains the defining question of the election.