Exclusive: Gov. Haley endorsing Rubio for president  —  Florida senator wins coveted support from SC governor  —  Haley is state's most popular GOP politician after handling of Charleston shooting  —  Jeb Bush was considered the other likely endorsement choice

Bush struggles to mask mounting frustration  —  SUMMERVILLE, S.C. — Jeb Bush is having a rough day.  —  Fighting for his political life in the final days of this primary battle, Bush took the stage intent on showing toughness and drawing a sharp contrast between himself and Marco Rubio.

Poll: Clinton, Sanders in a dead heat for Nevada  —  Washington (CNN)Likely Democratic caucusgoers in Nevada are split almost evenly between Hillary Clinton and Bernie Sanders ahead of Saturday's caucuses, according to a new CNN/ORC Poll.  —  Though Clinton holds an edge over Sanders …

Rubio holds ‘town halls’ — with no audience questions  —  AIKEN, South Carolina — Marco Rubio's campaign events here have been billed as “town halls.”  But if you're a South Carolina voter, don't expect to ask him a question.  —  On Tuesday and Wednesday, the Florida senator's campaign held four events …

Why Justice Scalia was staying for free at a Texas resort … Justice Antonin Scalia's sudden death over the weekend at a West Texas ranch raised questions about the nature of his travel, who paid for the trip and whether justices are subject to the same disclosure guidelines as other judges or federal officials.

The GOP's SCOTUS mega-mistake  —  It would be a catastrophic political mistake for Senate Majority Leader Mitch McConnell (R-Ky.) and other GOP leaders in Congress, not to mention Republicans running for president, to campaign until Election Day on a unified platform of forcing a government shutdown …

Ranch owner clarifies how he found Scalia amid conspiracy theories  —  For the second time this week, Donald Trump expressed skepticism about how Supreme Court Justice Antonin Scalia died, alluding to conspiracy theories suggesting he was the victim of foul play.