Oddly, but from what everyone who knows him well says, yes, I believe he is as corruption free as you or I. I think he has made big mistakes in his career, supported legislation he shouldn't have, etc., but corruption free, yes. It appears he is.
Here is, frankly, what i am mostly concerned about. It is Russian interference in the last days before the election in a manner similar to what is known now that Russian intelligence pulled of in France. What they did is mingle fictitious, but very believable, emails with actual emails. It was effective. I don't know what form their interference might take this time around, but it really concerns me. Perhaps the chaotic nature of U.S. elections will be the Russian's undoing. Nevertheless i am concerned. Let us both be watchful and on guard these last few days before the U.S. election. We both want voters to get authentic, correct information and to have an honest election . I keep hoping that the very capable Russians when it comes to cyber attacks will decide that the U.S. election is a lost cause and not want to throw good money after bad. But I am still very concerned.