INDIANAPOLIS -- When the Indiana Republican Party found itself in a bind this spring, unable to lock down a high-profile keynote speaker for its big annual fundraising dinner, it was Gov. Mitch Daniels himself who came up with the solution: He'd get his wife, Cheri, to do it. It was a bold move, considering that she had never given a high-profile speech before and generally has been reluctant to step onto the political stage. At the same time, her husband has been pondering a 2012 presidential bid (pondering it for the better part of 18 months, in fact) and the...