Mayor Bill de Blasio took to the morning shows Wednesday to inveigh against his longtime nemesis, Gov. Andrew Cuomo, as the three-term governor stares down impeachment in the wake of damning sexual harassment claims corroborated by the state attorney general.

De Blasio has been among Cuomo's biggest pubic detractors for years and was in the first wave of fellow Democrats to demand the governor leave office when the allegations first surfaced earlier this year. In a pair of appearances Wednesday, he said Cuomo was a "tyrant" of "Shakespearean" proportions who should face criminal charges for groping an aide, after the AG's investigation found the governor sexually harassed 11 women in violation of federal and state law.

“If you assault a woman, if you do something against her will sexually, that’s criminal. And the Albany district attorney’s looking at that. And I think he should be charged,” de Blasio said on "CBS This Morning."

The report by state Attorney General Tish James found that Cuomo groped the breast of an executive assistant under her shirt while she was working at the executive mansion in Albany. Albany DA David Soares said he is reviewing evidence in the case.

De Blasio slammed Cuomo’s defense after the report was published, in which the governor denied touching anyone inappropriately but said he frequently hugs and kisses people, which is common among men of his generation.

“Putting your hand up a woman’s shirt and touching their breast is not generational,” the mayor said. “I know plenty of guys who are older who would never in a million years do that. Talking to a 20-something-year-old woman, asking them if they would date an older guy, leering at them — this is not acceptable behavior. It’s not even close.”

Beyond the accusations, de Blasio said Cuomo's behavior toward fellow politicians and aides has long been abusive and should not be tolerated.

"There was a certain strange willingness in this sate to say, 'OK, we just gotta deal with it. He’s so powerful,'" the mayor said during an interview on MSNBC's "Morning Joe." "This is not a democracy when someone rules like a tyrant and threatens, bullies … whatever it is, it’s this constant use of power for personal gain, far beyond the boundaries of what we should ever accept."

He recounted the instance of Cuomo demanding de Blasio fire his former press secretary, Karen Hinton — who herself accused Cuomo of sexually inappropriate behavior — after she made a comment critical of the governor.

De Blasio urged the governor to resign immediately.

"He should just have the decency to do one thing — one thing where he thinks about other people rather than himself and step away today for the good of the people of New York State," the mayor said on "Morning Joe."

During the CBS interview, he said, “If he wants to wait for impeachment, he can, but it’s coming soon in our state Legislature."

He said the governor’s response, which included a slide show of photos of him hugging and kissing other people, was “out of touch with reality."

“It’s also profoundly disrespectful. How about saying, ‘I did something wrong. I have to atone for my sins. I need to go deal with my problems,’” he said.

Téa Kvetenadze contributed to this report.