Voting in South Carolina's all-important Republican presidential primary ends today

A supporter of former President Donald Trump drives past a campaign event for former U.N. Ambassador and South Carolina Gov. Nikki Haley on Feb. 1.

The Washington Post / The Washington Post

Former U.N. Ambassador Nikki Haley faces a critical election today in her bid for the GOP presidential nomination in her home state of South Carolina.

Haley, who was elected twice as governor in the state, has yet to win a presidential contest. In South Carolina, most polling has shown her lagging significantly behind former President Donald Trump — who has far and away been the party’s front-runner throughout this entire race.

Despite that, Haley’s campaign has banked a lot of time and resources in South Carolina. Her campaign raised millions last month – and has received influxes of cash from a billionaire donor, in particular.