Hillary​ Clinton just can’t face the fact that Donald Trump is in the White House and she’s not.

Ten months after her stunning defeat​ in the 2016 presidential election, the Democratic nominee held out the possibility of challenging the results if there’s solid proof of Russian interference beyond what has already been made public.

“I wouldn’t rule it out​,” Clinton told National Public Radio on Monday.

That seemed to floor the interviewer, Terry Gross.

“So what are the means, like, this is totally unprecedented in every way,” Gross said, grasping for a follow-up.

“It is,” replied Clinton.

But when asked how she would file such a challenge, Clinton was stumped.

“I don’t know if there’s any legal, constitutional way to do that​,” she admitted.

“There are scholars, academics, who have arguments that it would be, but I don’t think they’re on strong ground. But people are making those arguments. I just don’t think we have a mechanism,” she said.​

​Clinton got 3 million more popular votes than Trump but lost the presidency in the Electoral College, an institution she said should be eliminated.

“I do believe we should abolish the Electoral College, because I was sitting listening to a report on the French election and the French political analyst said, ‘You know, in our country the person with the most votes wins, unlike in yours.’ And I think that’s an anachronism. I’ve said that since 2000​,” she told NPR​.

Clinton insisted that if the roles were reversed — and Trump won the popular vote but lost the Electoral College — she would still be pushing for a full probe of Russia’s involvement in the election.

“Let me just put it this way — if I had lost the popular vote but won the Electoral College and in my first day as president the intelligence community came to me and said, ‘The Russians influenced the election,’ I would’ve never stood for it. Even though it might’ve advantaged me, I would’ve said, ‘We’ve got to get to the bottom of this.’ I would’ve set up an independent commission with subpoena power and everything else,” she said.

The NPR interview was part of a tour for Clinton’s new book, “What Happened,” in which she claims then-FBI Director James Comey cost her the election by announcing a new investigation into her ­e-mails 11 days before voters went to the polls.

In her chat with NPR, Clinton charged that Comey held her to a higher standard than Trump.

“Where I part company with him — and think he violated every rule in the book as a FBI director — was what he did on Oct. 28 [2016], because what he did then was to send a letter acting like he was reopening an investigation that had been closed to Congress, knowing it would be immediately leaked. And later on when asked, Well weren’t you also conducting an investigation into the Trump campaign and their connections with Russia? Yes. Well, why didn’t you tell the American people that?

Because it was too close to the election,” she claimed.