Nikki Haley is the former South Carolina governor and also served as the previous U.S. ambassador to the UN under President Trump. RELATED: Donald Trump announces 2024 presidential run https://bit.ly/3I1dS86 In the weeks since Haley's plans became public, Trump and his allies have stressed that she once said she would not seek the presidency if Trump did. Haley's declaration makes her the first major Republican to challenge former President Trump for the 2024 Republican nomination, as well as the first member of his cabinet — Haley was previously Trump's U.S. ambassador to the United Nations. » Subscribe to USA TODAY: http://bit.ly/1xa3XAh » Watch more on this and other topics from USA TODAY: https://bit.ly/3E9ixnA » USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR. #NikkiHaley #Politics #Election