Illinois politicians continue reacting to Sunday’s mass shooting in Las Vegas. Their responses are often falling along party lines.

A gunman who fired upon thousands of people attending a music festival on the Las Vegas Strip has killed more than 58 people, police say. Some 515 others were wounded in the mass shooting and panic that ensued. At least one of the dead is an off-duty police officer who was attending the concert.

President Trump solemnly addressed the nation Monday morning about Sunday night's mass shooting in Las Vegas, saying Americans are "joining together in sadness, shock and grief."