State Department spokeswoman Heather Nauert is set to be the next USA ambassador to the United Nations, according to U.S. media reports.
The administration has also worked through the United Nations to try to find a political solution to the wars in Syria and Yemen, two issues that will confront Nauert. A Republican congressional aide said the president was expected to announce his decision by tweet on Friday morning.
"I expect to continue to speak out from time to time on important public policy matters, but I will surely not be a candidate for any office in 2020", she said at the time.
Nikki Haley abruptly resigned in October calling her time as United Nations ambassador the "honor of a lifetime". She will have to be confirmed by the Senate to become ambassador to the United Nations.
It was reported in November that Nauert had been offered the job, but it was not clear at the time whether she had accepted.
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A representative of the State Department did not immediately respond to a request for comment. Trump had a fractious relationship with Nauert's first boss, the former secretary of state Rex Tillerson, but continued to hold a favorable view of the state department's top spokeswoman.
Nauert joined the State Department a year ago after a career as a television anchor and correspondent at Fox News.
She had served as the State Department spokesman and was promoted in March to acting under secretary of state for Public Diplomacy and Public Affairs.
ABC News reported in November that Nauert had been offered the United Nations job, but it was not clear at the time whether she had accepted.
Ahead of the vote, the U.S. ambassador sent a letter to all UN missions to make clear that "the United States takes the outcome of this vote very seriously". She oversaw public diplomacy in Washington and all of the roughly 275 overseas USA embassies, consulates and other posts.