I have explained to you that Anita Hill was already in the news, and for the Senate to have pretended otherwise would have been irresponsible. Therefore, this was addressed in the hearings.
Now, the leak of the FBI memo to NPR may have been politically motivated, and probably was. But since we don’t know who leaked it, we have no more than speculation there. Unless there’s evidence that the leak was caused by Democratic Senators, that’s not “dirty politics” on their part.
I’d like to point out — AGAIN — that the confirmation process of Clarence Thomas was not clouded by “dirty politics” by the Democratic-controlled Senate. The confirmation process of Merrick Garland (or, more accurately, the utter lack of one) WAS politically motivated by the Republican-controlled Senate. Apples and oranges.