The Democratic party regained control of the House of Representatives for the first time since 2008. The left-wing party gained at least 26 seats to retake the majority.
The result means that the Democrats will now chair special committees that oversee budgeting, defense spending, and ethics.
Republicans, however, made a strong showing in the Senate, winning three seats that had been held by Democrats. This gives them a six seat lead over its opposition in the Upper Chamber.