Democrats currently have the majority in the Senate. Democrats hold 47 of the chamber's 100 seats. Republicans have 49 seats. Along with those 47 Democrats, four independent senators usually vote with the Democrats, giving them a voting majority.

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

On Nov. 5, Texas voters will choose the next president, a U.S. Senator, and candidates for federal, state, and local offices. Follow our live updates.