Sen. Tammy Duckworth, a former Blackhawk pilot, talked with CBS News' Nikole Killion about the midair collision of a plane ...

As the investigation into a deadly plane crash in Washington, D.C., gets underway, U.S. Sen. Tammy Duckworth (D-Illinois) ...

Illinois Sen. Tammy Duckworth, a former Black Hawk pilot, is weighing in on the deadly collision in Washington, D.C. CBS News ...

Trump said he didn't know what caused the crash but "we have some very strong opinions and ideas." ...