In this June 5, 2015, file photo, Wisconsin Gov. Scott Walker speaks during the North Carolina Republican Party convention in Raleigh, N.C. (AP Photo/Gerry Broome, File)
FILE - In this June 5, 2015, file photo, Wisconsin Gov. Scott Walker speaks during the North Carolina Republican Party convention in Raleigh, N.C. (AP Photo/Gerry Broome, File)
Wisconsin Gov. Scott Walker speaks during the North Carolina Republican Party convention in Raleigh, N.C., Friday, June 5, 2015. (AP Photo/Gerry Broome) ** FILE **