The difference is that we can prove Hillary is a sleaze, as well as her hubby, but there is nothing on Delay except a bunch of Dem rethoric. It isn't what people "say" it is what people can prove that counts.
If we could prove that then those two would be in the slammer and not walking around free. For the Democrats the worst thing that could happen would be for Delay to go to trial because then he most likely would be found not guilty. The second worst thing would be for him to resign. Where he is, he is the perfect demon for them.