Ben Smith of BuzzFeed, formerly of Politico, drops this scoop:
Arizona Senator John McCain, his party’s 2008 nominee, will endorse Mitt Romney in New Hampshire tomorrow, a well-placed former McCain aide told BuzzFeed Tuesday.
McCain and Romney were bitter foes in 2008, but Romney repaired the relationship after his defeat with a season of determined campaigning for his former rival.
The endorsement will offer the Romney campaign a pivot point after the virtual tie with Senator Rick Santorum in Iowa, and a growing impression that the former governor is uniting the party behind him.