It wasn't 15 years ago from when he resigned, he didn't "have to" resign, and there's literally a photo of him committing sexual assault.
Never actually happened.
...he's not resigning, despite the fact he was photographed sexually assaulting women, he sexually harassed his own staff, he ordered people to lie about the number of COVID deaths in his nursing homes, etc. He still insists he did nothing wrong despite, you know, the sexual assaults and effectively killing people in nursing homes by concealing the problem rather than addressing it.
Frankin and Cuomo both sexually assaulted women. You're comparing ACTUAL CRIMES to someone who said things you don't agree with, when MTG used the kind of hyperbole you routinely see in Washington. If anything, you should ask why she's being held to a higher standard than AOC who routinely makes outlandish or hyperbolic statements. Or, hell, why is she being held to a higher standard than a literal Holocaust denier like Rashida Tlaib who hasn't resigned and continues to lie about Israel and the Jewish people. And MTG has faced consequences for at least some of her previous statements (things she said years ago), unlike AOC and Tlaib
And, while we're on the subject, why weren't charges ever leveled against Harry Reid when he was funneling donor money to his grand-daughter? Or why nothing happened to Nancy Pelosi when she violated California's mask laws? Or why John Kerry could fly on a public airline without a mask because he felt uncomfortable? You talk about a double-standard favoring one party, but you have the party wrong.
Hell, in CT, one of our Democrat mayors was convicted of taking bribes but got elected back to office.... where he was subject to more FBI investigations. How are those repercussions working out?