HOUSTON -- George W. Bush is as hard to find in his father's office, as he is in the 2012 presidential contest.
The 43rd president appears in a gold-framed picture tucked into a far corner of the room, partially hidden by a Texas flag and a cabinet door. The placement -- whether intentional or not -- is a reminder of the Republican presidential campaign and the lengths to which Romney and his rivals have tried to marginalize the two-term president.