In the leaked Ehud Barak emails you can see quite clearly that Epstein is working for Israel and Israeli intelligence, including direct references to the head of Mossad. The democrats are just as badly compromised by AIPAC and the Israel lobby as the republicans are, and if they actually release the files it'll start a snowball which takes down a whole lot of other important democrats as well - and besides, even if it would be good for America, we all know that's not who Chuck Schumer actually works for.