Article Photos: Democrat Tammy Baldwin wins US Senate seat in Wis.

Republican U.S. Senate candidate Tommy Thompson takes questions during a stop at Wingra Stone on Friday, Nov. 2, 2012, in Madison, Wis. Thompson faces Democrat Tammy Baldwin in the race to fill Wisconsin's open Senate seat. (AP Photo/Scott Bauer)

Republican U.S. Senate candidate Tommy Thompson takes questions during a stop at Wingra Stone on Friday, Nov. 2, 2012, in Madison, Wis. Thompson faces Democrat Tammy Baldwin in the race to fill Wisconsin's open Senate seat. (AP Photo/Scott Bauer)