File photo of Karl Rove and George W. Bush in Washington

 
File photo of Karl Rove and George W. Bush in Washington
U.S. President George W. Bush waves as he walks across the South Lawn from the White House towards the Marine One helicopter with deputy chief of staff Karl Rove in Washington in this July 14, 2005 file photo. Nearly a decade ago he was dubbed "Bush's Brain," for his influence in guiding Republican George W. Bush to the U.S. Presidency. This year, Karl Rove could be Mitt Romney's brawn. REUTERS/Shaun Heasley/Files (UNITED STATES - Tags: POLITICS ELECTIONS)