I would accuse Clinton about the War in Kosovo that he started and killed a lot of innocent people in Belgrade, Serbia.
Otherwise, I think that the US had passed great days with him in charge. The economy was thriving during his tenure and people saw their income increasing.
But after 20 years of his retirement, do you think it is a great time to arrest him? Why this didn't happen earlier?
The Clintons have been involved in criminal activity long before he was president, way back when he was Governor of Arkansas. Also Hillary's father was involved in organized crime, running moonshine if I remember correctly. Just google "Clinton Mena" for info on one of their earlier scandals involving drug smuggling and 2 dead kids. He wasn't prosecuted because the cartel he was involved with was still in power, but is no longer. Also, the economic prosperity experienced during the 90's under Clinton administration was based on fraud, mostly related to the housing market and other frivolous lending. This is what caused the economic collapse in 2009 as the world realized the market was saturated in fraud and it had a correction.