Scott Walker re-elected

Wisconsin Gov. Scott Walker greets supporters at his election night party Nov. 4, 2014, in West Allis, Wis. Walker defeated Democratic challenger Mary Burke.   (Darren Hauck/Getty Images)

Wisconsin Gov. Scott Walker speaks at his election night party November 4, 2014 in West Allis, Wisconsin. Walker defeated Democratic challenger Mary Burke.   (Darren Hauck / Getty Images)

Lt. Gov. Rebecca Kleefisch greets the crowd at Gov. Scott Walker’s election night party November 4, 2014 in West Allis, Wisconsin.  (Darren Hauck / Getty Images)

Republican Scott Walker greets supporters after victory in the midterm elections in Milwaukee, Wisconsin, November 4, 2014.   (Sara Stathas / Reuters)