Former U.N. Ambassador Nikki Haley dropped a new GOP primary ad in New Hampshire Tuesday featuring Gov. Chris Sununu (R), as Haley pushes to challenge former President Trump in the state’s primary. The ad features Sununu, four-term governor of the Granite State, praising Haley as the best choice in the Jan. 23 GOP primary. “She’s a leader who builds people up. She’s a ‘Live Free Or Die’ Republican who understands fiscal responsibility and individual liberty,” he says in the ad, referencing the state’s motto. “She’s a new generation of conservative leadership who can help leave behind the chaos and the...