Where's the pressure coming from?

Erstwhile Leftist Darling, AOC, is suddenly under investigation for ethics violations. Where's the pressure coming from?  I hope it isn't Republicans.  AOC is a walking advertisement for "Avoid Democrats". She's consorted with a communist mayoral candidate for New York City, angering what's left of the 'centrist'  Democrats. She's kissed the Israel ring, alienating the rest of "The Squad". Outside of her district she probably couldn't win a free prize, let alone an election. And she's been whispered as a contender for the Democratic nomination for president. So her being in hot water is no gift to the Republicans. Hopefully it's some wing of the Democratic party behind this moving forward, because frankly, it's only a gift to the Republicans if they are not the ones pushing it.