HARTFORD, Conn. (AP) The Connecticut Supreme Court has upheld the sexual assault conviction of a man who authorities say participated in the gang rape of a prostitute, in a case that tested limits to cross-examining rape victims.

Justices ruled Monday in the appeal of Chywon Wright, who is serving a 20-year prison sentence for the 2008 rape in his hometown of Waterbury.

Connecticut's rape shield law bars or limits evidence of a victim's prior sexual conduct, with certain exceptions.

Wright argued that a judge wrongly prevented his lawyer from questioning the victim about her offer to have sex with multiple men on the day of the rape.

The Supreme Court ruled that although the judge violated Wright's constitutional right to confront witnesses, the error wasn't significant enough to affect the jury's verdict.