"Sununu's Endorsement of Haley Shakes Up GOP Primary Race"

Former New Jersey Governor Chris Christie's campaign in New Hampshire took a hit as he failed to secure the endorsement of New Hampshire Governor Chris Sununu, a longtime friend. Sununu instead endorsed Nikki Haley, further weakening Christie's position as the most vocal Trump critic in the GOP field. Christie's campaign has struggled to gain traction in New Hampshire, where he is currently in third place in the polls behind Haley and Trump. Despite his fiery performance in the recent debate, Christie has been unable to expand his base of support and attract more voters.