When will Rick Santorum drop out of the race (or at least concede it's over):
After Tuesday (Mississippi/Alabama/Hawaii)?
After March 20 (Illinois)?
After April 3 (Maryland/Wisconsin/DC)?
After April 24 (PA/NY/CT/DE/RI)?
After May 29 (Texas)?
After June 5 (California, New Jersey, others)?
After June 26 (Utah, the final primary)?
Between July 1 and the first day of the convention?
During the convention but before the first ballot?
After the first ballot?