MILWAUKEE — Mitt Romney tightened his grip on the Republican presidential nomination Tuesday night, winning primaries in Maryland and Washington, D.C., and leading in Wisconsin, with time left over to swap charges with President Barack Obama.
COLUMBUS — Rick Santorum stole a key endorsement from chief rival Mitt Romney on Friday as polls in Ohio and elsewhere suggest the former Pennsylvania senator has seized the momentum in the rollercoaster Republican presidential contest.
WASHINGTON — The Republican presidential campaign rolled westward Wednesday, Mitt Romney riding herd after his Florida primary victory, Newt Gingrich looking for a new stake and a top party leader insisting the long trail won’t necessarily hurt the GOP in the race against President Barack Obama.