WASHINGTON -- The Supreme Court for the second time has refused to hear an appeal by imprisoned former Illinois Gov. Rod Blagojevich of his corruption convictions.

The justices didn't comment Monday in letting stand the convictions and 14-year prison term the 61-year-old is serving. His scheduled release date is 2024.

Blagojevich's lawyers had wanted the high court to take up his case to make clear what constitutes illegal political fundraising. They argued that politicians are vulnerable to prosecution because the line between what's allowed and what's illegal is blurry.

His convictions included trying to extort a children's hospital for contributions and seeking to trade an appointment to the Senate seat Barack Obama vacated when he was elected president for campaign cash.

The court also refused to hear his 2016 appeal.