South Carolina Gov. Nikki Haley is promising to back Donald Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE if he wins the Republican presidential nomination.

“We’ve said that we would support the nominee if they get the nomination,” she said late Thursday during the South Carolina Automotive Summit in Greenville, S.C., according to WYFF.

ADVERTISEMENT

Haley warned that Trump may have trouble winning over general election voters, though.

“If it comes down to Trump, we don’t know if he could win a general, and that’s a big concern,” said Haley, who has endorsed Marco Rubio Marco Antonio RubioFlorida senators pushing to keep Daylight Savings Time during pandemic Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Intelligence chief says Congress will get some in-person election security briefings MORE's GOP presidential bid.

Haley also downplayed Trump’s victory in Nevada’s caucuses.

“I think that, obviously, Mr. Trump has continued to do well, but Nevada wasn’t a test state,” she said. "It’s a small state with a caucus. It doesn’t count.

“I believe Rubio can overtake Trump. I think Rubio has really shown strong passion and fight but not only that, if you look at the crowds Rubio is getting, it’s young people, it’s old people, it’s all races and religions.”

Republican White House hopefuls are gearing up for Super Tuesday on March 1, when 12 states and U.S. territories will cast their votes in the biggest day yet of the GOP presidential primary.

Trump remains the party’s front-runner by nearly 13 points nationwide, according to a RealClearPolitics average of polls.

Haley endorsed Rubio on Feb. 17, three days before South Carolina's primary.

Trump won a resounding victory in the Palmetto State. Rubio finished third behind Trump and Ted Cruz Rafael (Ted) Edward CruzLoeffler calls for hearing in wake of Netflix's 'Cuties' Health care in the crosshairs with new Trump Supreme Court list 'Parks and Rec' cast members hosting special reunion to raise money for Wisconsin Democrats MORE.