Rep. Carolyn McCarthy: https://www.youtube.com/watch?v=9rGpykAX1fo
Possibly not the best / most egregious, but maybe the most famous: "a shoulder thing that goes up" for a barrel shroud.
DeGette is Colorado's 1st District (basically Denver) federal representative who took the seat when Patty Schroeder retired.
After she opened her mouth and inserted foot, her silence (although still being a sure demoncrapic vote for gun control) has been golden.
At first I was going to vote for that fellow Californian, anti rights dweeb, kevin de leon. But then I read the comment by.... who is diana degette anyway, and decided that not even her ignorance saves her from being the dumber of this dumb and dumber duo.