The chamber was decided Saturday evening after Nevada Sen. Catherine Cortez Masto defeated Republican nominee Adam Laxalt. That gives Democrats 50 seats.
NPR's Michel Martin speaks with Linda Chavez, former White House official in the Reagan administration, about what the midterm results say about the challenges ahead for the Republican party.
Sen. Mark Kelly gave Democrats some breathing room when he clinched his victory in the Arizona Senate race. But open seats leave questions about what the makeup of Congress will look like in January.
NPR's Scott Simon speaks with Dave Wasserman of the Cook Political Report about how the redrawing of Congressional districts throughout the country affected the outcome of midterm elections.
Sen. Mark Kelly has won reelection in Arizona's Senate race, defeating Trump-backed Republican challenger Blake Masters. That makes Democrats more likely to retain control of the Senate.
NPR's Scott Simon talks with Democratic Congresswoman Abigail Spanberger about what her tough reelection in Virginia means for her and her party in the future.