Senators represent a US state while House representatives represent smaller districts within a state. The Democratic vice-president yields the 51st vote if there is a 50-50 tie. In the Senate, the Republicans have 50 seats, the Democrats have 48, and two Independent senators - who align (also known as ‘caucus’) with the Democrats - have seats. Currently, the Democrats have 222 of the 435 seats in the House of Representatives.
The US Congress is composed of two parts: the Senate and the House of Representatives. The House of Representatives historically goes to the party not in the White House during midterm elections, meaning the Republicans could be in for a win in 2022. All 435 seats in the House of Representatives will be up for grabs as well as 34 total seats in the Senate. The US Congressional elections will take place on November 8, 2022.