Mitt Romney took the biggest Super Tuesday prize of all, Ohio, by a razor thin margin. The state was called for Romney only after 99.4% of precincts reported, giving him 38% to Rick Santorum's 37%. Earlier, Newt Gingrich got a crucial home-state win in Georgia, while Santorum grabbed needed victories in Tennessee, Oklahoma, and North Dakota. Romney cruised to expected wins in Massachusetts, Vermont, Idaho, and Virginia, where Ron Paul was the only other candidate on the ballot, reports AP. Romney also won the Alaska caucuses, leaving third-placed Ron Paul without a win. The states and delegates in play: