AP sources: Christie to announce presidential run Tuesday

Gov. Chris Christie is expected to announce Tuesday that he is running for president in 2016.
That's according to two people familiar with his plans. Those sources spoke with The Associated Press on condition of anonymity because they weren't authorized to pre-empt Christie's formal announcement. They said that the formal announcement will be at Livingston High School, which Christie attended.
But Christie seemed less clear about his plans during a radio show interview Thursday. He reiterated that he said he would make a decision by the end of the month and that he never claimed that he would announce his decision. He also said that he has been telling people all along that he isn't going to make any final decisions until his work on the state budget is done.
The Republican governor has been laying the groundwork for months. Christie considered a bid in 2012 before deciding to pass on a campaign.
He would join a field of more than a dozen major candidates for the GOP nomination. Once considered an early front-runner, Christie has yet to build momentum in the early days of the race.