Arnold Schwarzenegger
In its April 2010 report, Progressive ethics watchdog group Citizens for Responsibility and Ethics in Washington named Schwarzenegger one of 11 "worst governors" in the United States because of various ethics issues throughout Schwarzenegger's term as governor.

Q: What group awarded Schwarzenegger the title of one of the 11 "worst governors" in a 2010 report?
Citizens for Responsibility and Ethics in Washington