After Tuesday's primary voting, Mitt Romney will have made it half way toward the Republican presidential nomination—at least in terms of delegates. Mitt currently holds 568 delegates and stands to gain up to 98 today. Though Rick Santorum's frequent argument that "the race isn't even at halftime yet," is still valid, he'll have to win 69 percent of the unclaimed delegates before the GOP convention, while Romney only has to win 46 percent of them to secure the nomination.
