Nikki Haley
Republican presidential candidate, former UN Ambassador Nikki Haley, is facing mounting challenges as she seeks the Republican presidential nomination.
  • Former President Donald Trump trounced Nikki Haley in her home state of South Carolina's primary.
  • A make-or-break day is now approaching: March 5, Super Tuesday, with 16 primaries and caucuses.
  • And if Trump does as well as his campaign predicts, he could secure the GOP nomination by March 12.

Republican former President Donald Trump easily defeated his former UN Ambassador Nikki Haley in her home state of South Carolina's primary race on Saturday night, and while she recently vowed to stay in the running, her path to the nomination just got substantially more difficult.