President-elect Donald Trump has picked South Carolina Gov. Nikki Haley to be ambassador to the United Nations in his upcoming administration, three senior Trump transition sources confirm to ABC News.
Sources tell ABC News that Haley, a favorite among conservatives, is expected to accept Wednesday.
Haley is the first woman Trump has chosen for a position in his administration. She will need to be confirmed by the U.S. Senate for the post.
While she has been a critic of the Iran nuclear deal, Haley has little foreign policy experience aside from the trade missions she led overseas as governor.
The South Carolina Republican, who attracted national attention for removing the Confederate flag from the South Carolina state Capitol grounds, initially supported Sen. Marco Rubio, R-Florida, for president.
"I will not stop until we fight a man that chooses not to disavow the KKK," Haley said on the trail with Rubio in regards to Trump's initial refusal to repudiate white supremacists supporting his campaign. (He has since repeatedly disavowed their support.) "That's not who we want as president."
Trump fired back at Haley on Twitter.
The people of South Carolina are embarrassed by Nikki Haley!— Donald J. Trump (@realDonaldTrump) March 1, 2016
Following her 2016 State of the Union response - which was critical of Trump's brand of politics - Haley told ABC News' Jonathan Karl that Trump is one of the "angriest voices" and should not "throw stones" over political disagreements.
“The one that got me, I think, was when he started saying ban all Muslims,” she said at the time of Trump's proposed Muslim ban. “When you’ve got immigrants that are coming here legally, we’ve never in the history of this country passed any laws or done anything based on race or religion."
She has since patched up her relationship with Trump, who she voted for in the election and met with last week.
“If we as Republicans are going to lead effectively and have staying power as a governing party, we must accept that Donald Trump’s election was not an affirmation of the way Republicans have conducted themselves,” she said at the Federalist Society’s National Lawyers Convention in Washington, D.C.
“The president-elect deserves tremendous credit for the way he was able to connect with the electorate. But he did not do it by celebrating the Republican Party. And the American people did not vote for him because he had an ‘R’ next to his name. He ran against both parties, against the political system at large," she said.
ABC's Alana Abramson and Ben Siegel contributed to this report.