Rep. Anthony Weiner has lost nearly all support in Congress, sources told The Huffington Post, but the embattled New York Democrat has an even tougher audience yet to face: He has to explain himself to Hillary Clinton, the formidable secretary of state he has come to regard as his honorary mother-in-law, people who know the Clintons and Weiner said.

“It scares me, and I’m nowhere near Weiner,” said one Clinton-world insider. “I get nervous even thinking about it.”…

“Huma is not a favored aide, she’s not a close family friend. She is a daughter to Hillary, and to Bill,” said one friend. “I walked away from that wedding saying, ‘Holy shit. [Weiner] married a Clinton.'”

And the apology to Bill Clinton will pale in comparison to a talk with Hillary Clinton. “Apologizing to the president is hard enough, but he can’t exactly take the moral high ground, can he?” said a source who knows all the people involved. “I’d be terrified of [Hillary].”