 Trotter ran for Congress again in 2013 special election in Illinois' 2nd congressional district.On Wednesday, December 5, 2012, Trotter was charged with "attempt to board an aircraft with a weapon", which is normally a Class 4 felony, after Transportation Security Administration agents found a .25 caliber Beretta handgun and magazine loaded with six live rounds, which were in the outer pocket of a garment bag.The incident occurred at Chicago's O'Hare International Airport, as Senator Trotter was attempting to board a flight to Washington, D.C. Trotter was held in police custody pending an appearance in bond court the following day, Thursday, December 6.