From the report:
Simpson had been frequenting bars at the hotel since his release from prison. Hotel staff tells TMZ … at around midnight last night, Simpson was drunk and became disruptive at the Clique bar. We’re told Simpson was angry at hotel staff and glasses broke at the bar.
Security reportedly showed up and kicked Simpson out of the hotel, and he’s been from entering the Cosmopolitan in the future.
Simpson, who was convicted of kidnapping, armed robbery and assault with a deadly weapon back in 2008, was released on parole in early October.