Americans vote in key midterms with all 435 House seats and 35 Senate seats up for grabs, as Republicans defend slim majorities. The outcome will shape Trump’s ability to push his agenda and how far Democrats can challenge and investigate his administration. Al Jazeera’s Mike Hanna explains. #USMidterms2026 #USMidterms #USCongress #CongressionalElections #HouseOfRepresentatives #USSenate #DonaldTrump #Democrats #Republicans #USPolitics