According to a tweet by Associated Press, John Huntsman conceded prior to the South Carolina primary. The idea of Mr. Huntsman dropping out was expected, but not before the primary. According to sources, the campaign was out of money and unable to buy ad spots.
Huntsman is expected to endorse Mitt Romney.
NY Times
Matt David, campaign manager to Mr. Huntsman, confirmed the decision in an interview Sunday evening. “The governor and his family, at this point in the race, decided it was time for Republicans to rally around a candidate who could beat Barack Obama and turn around the economy,” Mr. David said. “That candidate is Gov. Mitt Romney.”
LA Times
polls showed him trailing the other five Republican hopefuls ahead of Saturday's primary in South Carolina.
Politico
"It was entirely a family decision," said the source.
Earlier today, The State endorsed Mr. Huntsman. Oops.