If Gov. Blagojevich wants to invoke the insanity defense, he won't get an argument from Mayor Daley.
Daley turned into an amateur psychiatrist Friday when asked about the governor's claim that the state Senate's upcoming impeachment trial is a plot to get Blagojevich out of the way to pave the wave for a massive tax increase.
"I've said, 'cuckoo' once. I'll say it again: 'Cuckoo,' " the mayor said of the governor's claim.