Everyone running for president has some skeletons in their closet or has been involved with something corrupt I'm sure. Even someone like Warren or sanders.
Hillary is a progressive. Probably more progressive than Obama. She ran a centrist campaign last time and it bit her in the ass because her advisers weren't expecting the left or country to be this ready for someone to run as left as Obama did in 2008.
There's a difference between a few skeletons and just downright corrupt. I'm willing to give a wink and a nod to a few underhanded things but mark my words if she becomes President she will have more things from her past come up. Her entire presidency will be a circus.