In North Carolina, Democrat Rep. Mike McIntyre holds a lead of fewer than 600 votes over Republican challenger David Rouzer.
In Louisiana, the race between two sitting GOP House members, Reps. Charles W. Boustany Jr. and Jeffrey M. Landry — pitted against each other because of redistricting — will extend for another month, as the two were forced into a runoff election after neither got a majority victory. Mr. Boustany won 44.7 percent of the vote Tuesday, while Mr. Landry got 30 percent.
Meanwhile, the presidential race in Florida was undecided Thursday, though President Obama has won re-election no matter the outcome. Mr. Obama holds a less than 1 percent lead in the Sunshine State.