Scottish voters rejecting independence from Britain
Joe Biden
What happens if Republicans win the Senate?
What happens if Republicans win the Senate?

For most of the year, it seemed almost certain that Republicans would win the six additional U.S. Senate seats they need to oust the Democrats from their majority and take control of Congress. But the outlook has turned murkier in recent weeks. While a GOP majority is still the most likely outcome, it's no longer as sure a bet. Endangered Democratic incumbents in North Carolina and Alaska are waging surprisingly strong campaigns, and a Republican incumbent in Kansas is in unexpected trouble. "We don't have a lock on this thing at all," one GOP strategist told me recently. It even seems possible that Senate elections could end in a draw, with a 50-50 split, in which...