Your daily look at late-breaking news, upcoming events and the stories that will be talked about today:
1. WHY OBAMA CHIDES SENATORS
The president is challenging Republicans to live up to their avowed adherence to the Constitution and agree to vote on his nominee to replace the late Antonin Scalia.
2. GOP CANDIDATES IN HIGH-STAKES MATCH IN SOUTH CAROLINA
Jeb Bush, John Kasich and Marco Rubio are strategically moving money and other campaign resources around in a bid to pull ahead in the Republican primary race.