I just spoke to a Gary Johnson "insider" who confirmed that, as has been reported elsewhere, the former governor indeed will announce he's running for president in mid April in New Hampshire.
As others have reported, there will be no "exploratory committee" song and dance. He'll be announcing his candidacy.
Though Johnson told me "nothing to report" just a few hours ago, the insider said he has to be careful with public statements because of the tax status of his political advocacy group Our America.
My story this morning about Johnson's possible run is HERE.
UPDATE: Just confirmed the announcement date is April 21.