An FBI wiretap played at Tim Mapes’ perjury trial last year captured the longtime aide to House Speaker Michael Madigan asking a colleague if he was going to put on his “big boy pants” before carrying out a politically thorny Madigan order. On Monday, it will be Mapes’ turn to put on the big boy pants. Mapes, who served for years as Madigan’s abrasive and sharp-tongued chief of staff, executive director of the Madigan-run Democratic Party of Illinois, and clerk of the House, is scheduled to be sentenced for lying to a federal grand jury investigating his former boss. Prosecutors are asking for…