WASHINGTON – A senior government official resigned Monday after a report concluded her agency improperly paid for an "over-the-top" training session near Las Vegas that featured a mind reader, bicycle giveaways and lavish after-hour receptions in resort suites for federal workers.

The White House accepted General Services Administration chief Martha Johnson's resignation after she dismissed two deputies and suspended other career employees over an $820,000 conference. The 300-person event at the M Resort Spa and Casino in Henderson, Nev., included a $95-per-person dinner and reception as well as various violations of federal laws and policies.

"As the agency Congress has entrusted with developing the rules followed by other federal agencies for conferences, GSA has a special responsibility to set an example, and that did not occur here," the inspector general concluded in its report.