U.S. District Judge James Zagel said Wednesday he tentatively plans to unseal a smattering of what news organizations want to be made public - including snippets of a motion filed by lawyers for Blagojevich co-defendant William Cellini.
The Cellini document had been sought by the Chicago Tribune, CNN and WLS-TV.
CNN and WLS also sought access to FBI wiretaps of Blagojevich's phone conversations in the days before his arrest.
Blagojevich is accused of scheming to sell or trade President Barack Obama's former U.S. Senate seat and of illegally squeezing business executives for campaign money.
He has denied wrongdoing.