The new details emerged as prosecutors outlined their reasons for the judge to impose a roughly three-year prison sentence and lifetime supervised release for former state senator Ray Holmberg, 81. He pleaded guilty last year to travel with the intent to engage in illicit sexual activity. He faces up to 30 years in prison, a $250,000 fine and lifetime supervised release.

The new court documents say Holmberg used his positions as a high school guidance counselor and state lawmaker to exploit vulnerable youth and young men for decades, and cite numerous messages the prosecutor said show some of his countless arrangements to pay for sex with young men while traveling, often while on state business trips.