FILE - In this March 31, 2011 file photo, Wisconsin Gov. Scott Walker speaks in Milwaukee. Republicans will be defending more governorships than Democrats next year, including in a string of Southwestern and Midwestern states President Barack Obama carried just a year ago. Yet, voters in many of them seem as open to re-electing Republican governors swept into office in 2010 on the tea party wave and who enacted economic and labor policy changes far different than the Democratic president's. (AP Photo/Darren Hauck, File)