CHICAGO (CBS) – For five days, one of the star witnesses in former Illinois House Speaker Michael Madigan's federal corruption trial has been on the stand testifying about his relationship to Madigan and his close associate and lobbyist Michael McClain.

Defense attorneys in the corruption trial of former House Speaker Michael Madigan on Wednesday attacked the credibility of a key prosecution witness, questioning his motives for cooperating with the FBI and grilling him over attempts to hide money in a divorce and his recent attempted purchase of a gun to shoot rattlesnakes.

The former chief lobbyist for electric utility Commonwealth Edison has spent the last week telling a federal jury how he bent over backward to accommodate hiring requests from former Illinois House Speaker Michael Madigan.

Defense attorneys in the Michael Madigan corruption trial began their cross-examination of a key witness Tuesday by trying to distinguish between exchanging jobs for official actions and simply

The bribery and racketeering trial of former Illinois House Speaker and Democratic Party of Illinois Chairman Michael Madigan is set to resume Tuesday after a four-day weekend. The court was not in session Friday and the federal courthouse in Chicago is closed Monday for Veterans Day.

Former ComEd executive Fidel Marquez is expected to testify for a sixth day at the corruption trial of former Illinois House Speaker and Democratic Party of Illinois Chairman Michael Madigan. Defense attorneys for Madigan and codefendant Michael McClain cross-examined Marquez on Wednesday.

Patrick Cotter, defense attorney for a longtime Madigan ally, spent more than three hours cross-examining former ComEd executive Fidel Marquez, trying to methodically rehabilitate his client.