U.S. Sen. Lindsey Graham (R-S.C.) says Mitt Romney's running mate will be either former Minnesota Gov. Tim Pawlenty or Ohio Sen. Rob Portman. A prominent Ohio Democrat predicts Pawlenty will get the nod over Portman, partly because of his appeal to evangelical voters. Another Democrat, Pennsylvania's Ed Rendell, jokingly said Romney should pick Minnesota Congresswoman Michele Bachmann. Romney promised to make an announcement no later than day three of the Republican National Convention.