Because that would probably be a bad idea.
According to the Washington Examiner:
Former United Nations Ambassador Nikki Haley says she will not run for president in 2024 if her former boss decides to enter the race.
Haley announced on Monday that she would support former President Donald Trump in the event that he runs for reelection after losing to President Joe Biden in 2020.
“I would not run if President Trump ran,” Haley told reporters at a press conference in Orangeburg, South Carolina.
“And I would talk to him about it,” Haley added. “You know, that’s something that we will have a conversation about at some point if that decision is something that has to be made.”
Anybody who opposes Trump