CORN, POPPED: Ocasio-Cortez targeted by mystery multimillionaire donor.

Just three months after taking office, the Democratic socialist congresswoman’s challengers include an Egyptian American journalist, who has already tossed her hat in the ring, and an NYPD cop-turned-high school civics teacher and conservative talk radio producer, both of whom are seriously exploring a run against her.

And the fledgling challengers could get help from a wealthy New Yorker committed to backing an Ocasio-Cortez opponent, a GOP big said.

“There’s definitely national energy and money on this race,” Bronx Republican chairman Mike Rendino told The Post, adding that he has been in touch with a mega-bucks donor hell-bent on getting AOC tossed.

Rendino wouldn’t divulge the donor’s name but said the individual is “worth over $200 million, plus [has] connections to raise money in Manhattan.”

Tom Doherty, a former deputy to former Gov. George Pataki, said a Republican challenger to AOC would be able to “raise real national money.”

The real fun will be seeing if she gets primaried.