He was once the most dominant figure in American politics, his approval rating an astounding 90 percent. But four years after leaving office, former President George W. Bush is playing no role in this year's campaign -- and many fellow Republicans seem happy to keep it that way.
His father, former President George H.W. Bush, and mother, Barbara Bush, officially endorsed Mitt Romney five weeks ago. His brother, former Florida Gov. Jeb Bush, also has backed the presumptive Republican nominee.