I think you'd have to present a LOT of evidence to prove he is the most corrupt, and I really don't think you're going to do that.
{ Obama nominated Timothy Geithner, a repeat tax cheater, to head the government agency that enforces the tax laws.
Prior to his nomination, Geithner had:
1) Illegally failed to pay more than $34,000 in social security and medicare taxes
2) Illegally declared the cost of his childrens summer camp as a form of day care.
3) Illegally failed to pay the early withdrawal penalty when he took money out of his retirement plan
4) Illegally declared non-eligible items as a charitable deduction
5) Illegally declared something which was ineligible as a small business deduction
6) Illegally declared utility expenses which had actually been for his personal use
}
{ Obama had four U.S. citizens killed without judicial process.
The ACLU accused Obama of violating the U.S. Constitution for doing this.
U.S. Congressman Ron Paul (R-TX) said that Obamas actions might be an impeachable offense.}
{During the Chrysler bankruptcy, Obama violated the Fifth Amendment and more than 150 years of bankruptcy law by illegally treating secured creditors worse than unsecured creditors. Some of these secured creditors were retired teachers and police officers from Indiana. Richard A. Epstein, a law professor at New York University School of Law, wrote, Upsetting this fixed hierarchy among creditors is just an illegal taking of property from one group of creditors for the benefit of another, which should be struck down on both statutory and constitutional grounds. }
{In June 2009, Obama fired Inspector General Gerald Walpin, after Walpin accused Sacramento mayor Kevin Johnson, an Obama supporter, of misuse of AmeriCorps funding to pay for school-board political activities. }
Need more?
But you could make a start. How is Obama more corrupt than Bush?
Bush never ordered the murder of U.S. Citizens, Obama has Americans assassinated on a regular basis.