And the winner is ... the GOP! Adding salt to the Democrats' wounds suffered in the bruising 2014 midterm elections, Republican Martha McSally was officially declared the winner in the race for Arizona's 2nd District on Wednesday, the final outstanding congressional contest.
McSally's slim, 167-vote victory over Democratic Representative Ron Barber means that Republicans will control 247 House seats, compared to 188 for Democrats, who headed into the midterms with a 234-201 majority.
The final net loss of seats for Democrats in the House is 13.
In the U.S. Senate, Democrats went in to the midterm elections with a 55-45 seat majority, and exited trailing by a margin of 54-46.
The net loss of 9 seats means that the Republicans will control of both chambers for the first time since 2006.