Holding a congressional majority would enable opponents to challenge Trump's agenda, give them investigative powers over his administration, and could also help them showcase their vision for America ahead of the 2028 presidential election.
At recent rallies, Trump has appeared to have two main aims: to change the subject from those economic issues and to use fear to turn out the Republican vote.
The stakes are high for Trump, as midterm election results are seen as a measure of how satisfied Americans are with a president's performance.
While supporters inside the rallies have cheered his appearances, there has also been disquiet among some Republicans over Trump's appeal with more moderate voters.
Trump is currently facing a backlash over the cost of living.
Holding a majority would enable them to challenge Trump's agenda, give them investigative powers over his administration, and could also help them showcase their vision for America ahead of the 2028 presidential election.
Trump has been campaigning non-stop across the country ahead of the election - even in areas that were once thought to be safe Republican strongholds.
At these rallies, Trump appeared to have two aims: to change the subject from those issues and use fear to turn out the Republican vote.
In the room at the rallies, supporters cheered, but there has also been disquiet among some Republicans over Trump's appeal with more moderate voters.
Trump is facing a backlash over the cost of living.