Republican consultant Alex Castellanos said in a new interview that former Ambassador to the United Nations Nikki Haley, who dramatically broke with former President Trump last week, has the best shot at the 2024 GOP presidential nomination.

“I think Nikki Haley is the front-runner and it’s going to be very hard to stop her,” Castellanos told OZY co-founder and CEO Carlos Watson. “I think she’s underestimated.”

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In a clip from “The Carlos Watson Show” provided exclusively to The Hill, Castellanos went on to say that “politicians in Washington” dismiss the former South Carolina governor as “not really a heavyweight candidate” but that “she’s the real deal” and “the horse to beat.”

Haley, a former member of Trump’s administration, was sharply critical of him in an interview published Friday, particularly over his role in the deadly Jan. 6 riot at the Capitol.

Read more at The Hill.