What is it with these Leftist protesters?!  Shouting down a United States Senator, or any other speaker, is really OTT (over-the-top).  This is despicable behavior, and it has become the norm in today's society.  From the Black Lives Matter movement to Univ. Cal.-Berkeley to Melissa Click at the Univ. of Missouri calling for some muscle to take away a student reporter covering her protest on the otherwise public campus, these agitators are ugly.  Period.