New York Gov. Andrew Cuomo is under fire for declaring Wednesday that America “was never that great.”

The Democrat -- and rumored 2020 presidential candidate -- made the seemingly offhand remark as part of his rebuke of President Trump's "Make America Great Again" slogan during a bill-signing event in New York.

On "America's Newsroom" Thursday, RNC spokeswoman Kayleigh McEnany said Cuomo has no chance of becoming president after his remarks.

"He pretty much drowned those presidential ambitions with that statement," she said, adding that Democrats no longer agree with Republicans on basic things like the greatness of America or the capitalist system.

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McEnany said voters will hear "anti-American, pro-socialist rhetoric" from the Democrats' debate stage in 2020, accusing some on the left of "destroying the very fabric of our country" with their inflammatory comments.

“We’re not going to make America great again. It was never that great,” Cuomo said, to an awkward blend of gasps and chuckles.

"We have not reached greatness, we will reach greatness when every American is fully engaged; we will reach greatness when discrimination and stereotyping against women, 51 percent of our population, is gone and every woman's full potential is realized and unleashed and every woman is making her full contribution," he continued.

Cuomo later backtracked a bit, saying through a spokesperson, "The Governor believes America is great and that her full greatness will be fully realized when every man, woman, and child has full equality. America has not yet reached its maximum potential."

President Trump took to Twitter to blast Cuomo for having a "total meltdown."

“WE’RE NOT GOING TO MAKE AMERICA GREAT AGAIN, IT WAS NEVER THAT GREAT.” Can you believe this is the Governor of the Highest Taxed State in the U.S., Andrew Cuomo, having a total meltdown! — Donald J. Trump (@realDonaldTrump) August 16, 2018

That drew a response from Cuomo, who accused Trump of trying to bring America back to the days of "discrimination, segregation, sexism, isolationism, racism or the KKK."

.@RealDonaldTrump: What you say would be 'great again' would not be great at all...We will not go back to discrimination, segregation, sexism, isolationism, racism or the KKK. Like NY's motto says: Excelsior -- Ever Upward (not backward) https://t.co/nrcUrsYJCO — Andrew Cuomo (@NYGovCuomo) August 16, 2018

Watch the discussion above.

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