US President-elect Donald Trump has announced that former Ambassador Nikki Haley and former Secretary of State Mike Pompeo will not be joining his administration. Trump is currently meeting with potential candidates for key positions before his January inauguration. Haley, who served as US ambassador to the United Nations, endorsed Trump for president despite initially criticizing him. Pompeo, who also served as director of the CIA, has been mentioned as a possible defense secretary. Trump made key personnel announcements via social media during his first term as president.