FILE - U.S. Ambassador to the United Nations Nikki Haley speaks during a news briefing at the White House, in Washington, Sept. 15, 2017. Haley, the former South Carolina governor and United Nations ambassador, announced her candidacy for president on Tuesday, becoming the first major challenger to former President Donald Trump for the 2024 Republican nomination. (AP Photo/Carolyn Kaster, File) CHARLESTON, S.C. – Nikki Haley, the former South Carolina governor and United Nations ambassador, announced her candidacy for president on Tuesday, becoming the first major challenger to former President Donald Trump for the 2024 Republican nomination. The announcement, delivered in...