Incumbent North Dakota Sen. Heidi Heitkamp (D) lost to Republican challenger Kevin Cramer, effectively putting control of the Senate out of Democrats' reach. Texas Senator Ted Cruz won his re-election Democrat challenger Beto O'Rourke by a nose, shutting out Democrats from winning the vulnerable seat. In Florida's too-close-to-call race, the Republicans have reportedly prevailed. Incumbent Sen. Bill Nelson (D) was unseated by two-time Governor Rick Scott.
Heitkamp was among three Senators up for re-election who had all voted against confirming Supreme Court nominee Brett Kavanaugh, and now all three of them have been ousted.