Rep. Omar sprayed with unknown substance during town hall

We are just getting a look at this disturbing moment. A man rushes at Congresswoman Ilhan Omar of Minnesota during a town hall in Minneapolis and sprays her with an unknown substance. Let's watch.>> Or face impeachment. >> I don't know. >> The man was quickly taken down by security and removed from the room.Minneapolis police say Omar was uninjured and later finished speaking at the event, adding tonight that they've arrested the man and booked him on thirdderee assault. So far, he has not been named. You m ...