House Speaker Michael Madigan is circulating a memo to legislative candidates spelling out how they can call for impeachment hearings for Gov. Rod Blagojevich-with talking points that compare corruption under the governor to a tumor that must be removed. The 14-page rundown of Blagojevich’s alleged “misdeeds and malfeasance” is sure to deepen the feud between the two Democrats. “One thing we learned from the [imprisoned former Republican Gov.] George Ryan case is that we should excise a tumor when it is first discovered; not leave it in the body to continue to spread and do further harm,” the memo reads.