As long as Nikki Haley has been a national figure, she has held a distinct, defined role in politics. She rose to stardom as a two-term governor of South Carolina and then served as President Donald Trump’s first U.S. ambassador to the United Nations. Along the way, she was repeatedly mentioned as a possible presidential or vice presidential figure (to the point that speculation was rampant that she would replace Mike Pence on Trump’s reelection ticket). Haley was one of the few high-profile members of the administration to leave on good terms with Trump, and she did so without becoming a liability on the trail for down-ballot candidates, especially other women. So, with no clearly defined role in the Republican Party or conservative movement and Democrats in power, what is Haley doing now? The answer...