Prosecutors had mentioned some of those witnesses, including convicted fundraiser Antoin "Tony" Rezko, in their closing argument, and Adam argued the defense should be able to do the same.
"Your honor, I have a man here that is fighting for his life," Adam said, turning red and raising his hands.
Zagel responded: "You will follow that order because if you don't follow that order you will be in contempt of court."
"I'm willing to go to jail on this," Adam shot back.
Zagel said he was giving Adam the night to rework his closing arguments, given his "profound misunderstanding of legal rules." He said another defense attorney could be designated to give the closing if Adam couldn't follow the rules.
The prosecution had wrapped up its closing arguments earlier, as did an attorney for Blagojevich's brother, Robert Blagojevich.
Both men have pleaded not guilty to an alleged scheme to sell the Senate seat that Barack Obama gave up when he was elected president, and to plotting to illegally pressure people for campaign contributions.