LAS VEGAS — O.J. Simpson has appealed to the Nevada Supreme Court to overturn his convictions for armed robbery and kidnapping during a Las Vegas hotel room confrontation with two sports memorabilia dealers.

The appeal arrived today at the Supreme Court in Carson City.

The former football star, actor and advertising pitchman asks the high court to throw out his conviction on grounds that include judicial misconduct, insufficient evidence, a lack of racial diversity on the jury and errors in sentencing and jury instructions.

The document criticizes the trial judge, Clark County District Court Judge Jackie Glass, and accuses prosecutors of improperly asking questions about allegations of witness intimidation in front of the jury.

"Cumulative error ... was so egregious and prejudicial that the defense could not get a fair trial," Simpson attorneys Yale Galanter and Malcolm LaVergne wrote in seeking the reversal.

Appeals in Nevada can take more than a year. Supreme Court spokesman Bill Gang said there was no way to know when the justices might rule.