Mitt Romney's team is using delegate math to make the case to his rivals that they should drop out. The former governor has about 415 delegates, with 1,144 needed to secure the nomination.
Barring a major upset, Mitt Romney is still on track for the nomination. But Super Tuesday could have been a lot better for him, and the path ahead is daunting.
After Super Tuesday: The assumption is that Mitt Romney damages himself and the GOP as he continues to battle Santorum and others to the nomination. That's true, but only in part. The grueling primary process has also strengthened him. Just as it strengthened Obama in 2008.
A return to the negotiation table could relieve some of the tension that has built up over threats of an Israeli military strike on Iran nuclear targets.