All 435 seats in the United States House of Representatives are up for election Tuesday night as Democrats and Republicans vie for control of the lower chamber of Congress. Representatives are elected to two-year terms and serve a specific district in their state. The number of representatives per state is set by that state's population.

Republicans currently hold the majority in the House, while Democrats have the Senate. A handful of tight matchups could swing the balance of power.

Democrats’ path to take back control of the House of Representatives has narrowed as Republicans outperformed expectations up and down the ballot and Donald Trump retook the White House, but the outcome of dozens of races makes it too close to call as of early Wednesday morning.

Republicans were favored to win control of the Senate and flipped seats in West Virginia, Montana and Ohio, while the battle for the House is on a knife-edge.

Republicans look poised to win control of the U.S. Senate while Democrats could take the House as voters across the nation cast ballots Tuesday. Early results gave Republicans an edge, as West Virginia Gov.

Americans are poised to elect a new Congress as every seat in the House of Representatives and one-third of the Senate is up before voters on Election Day.