Impeachment, by the way, requires a two-thirds majority in the Senate, so would require Republican votes even if the Democrats won every available seat in November. But for Democrats to pull this off in the Senate, not only would voters have to side with Democratic incumbents in conservative states, but Democratic challengers would have to win in places like Nevada and Arizona, and possibly Tennessee and Texas. One narrative has become dominant: that Democrats are likely to gain control of the House and Republicans hold the Senate, if not expand their majority there. House of Representatives members serve two-year terms representing the people of a single constituency, while each state has two senators. But they urge caution, because the races in the many districts across the country that are up for grabs are still very close.
The United States holds midterm elections for all 435 House seats, for 35 Senate seats (including two special elections in Minnesota and Mississippi), for 39 state and territorial governorships, and for numerous state and local races.