News & ObserverWalker critical of Romney in 2012, Bush in 2000News & ObserverFILE - In this July 4, 1999 file photo, presidential hopeful George W. Bush greets supporters at the start of a parade in Merrimack, N.H. In 2000, likely Republican presidential candidate Scott Walker, who was then a 32-year-old state Assembly member during ...and more »