Donald Trump is rejecting a former political adviser’s assertion that he can’t win the White House.

Trump noted that Sam Nunberg, the former aide, was fired. He also claimed Nunberg “makes routine calls begging for his job back.”

“Sam Nunberg was fired,” the GOP presidential front-runner said, according to The Daily Beast. “This is the interview of a desperate person who is trying to hang on and stay relevant.”

Nunberg predicted Wednesday that Trump is ultimately doomed and will not perform well in early-voting states such as Iowa and New Hampshire.

“Under the scenario I am laying out, I do not think that he will win,” he told The Daily Beast.

“He’s going to lose Iowa. [Ted] Cruz will win Iowa,” Nunberg said. “Some of that support will move over to Cruz in New Hampshire once he loses.

“Once he loses Iowa, he’ll drop [in New Hampshire],” he added. “Once Cruz wins Iowa, and if he beats Trump in New Hampshire, which he very well could, Cruz could win South Carolina, from a momentum perspective.

“[I don’t] see a pathway to the nomination — he certainly won’t be the frontrunner anymore, and his numbers will start to fall.”

Trump’s campaign fired Nunberg last August over social media posts he allegedly made in 2007 and 2008.

He reportedly called President Obama a “Socialist Marxist Islamo Fascist Nazi Appeaser,” as well as both a Kenyan and a Muslim.

Read the article “Trump Rejects Ex-Aide’s Claim His White House Bid is Doomed” on thehill.com.