There are more reports out there than definitive explanations, but here’s what we’re seeing:
From the AP:
Former president Bill Clinton checked himself into a New York City hospital on Friday after suffering chest pains, a Democratic Party official and a police source said.
Clinton plans to undergo heart bypass surgery soon, although the surgery is unlikely to be Friday, an official close to Clinton said.
From CNN:
Former President Bill Clinton will undergo heart bypass surgery Saturday, sources tell CNN.
Clinton was in New York-Presbyterian Hospital on Friday undergoing tests for chest discomfort.
Reuters and MSNBC have largely the same thing. There’s been talk in some places of a “heart attack,” but none of the official sources seem to confirm that.