There are two other videos at Powerline, where the following is from:

Really, this story requires no analysis or set up at all. From the Seattle Times a few hours ago…

Black Lives Matter protesters shut down Bernie Sanders speech

A Seattle speech by Democratic presidential candidate Bernie Sanders was pre-empted in a chaotic confrontation Saturday afternoon with a handful of Black Lives Matter protesters, who took the stage and refused to let him speak.

As the star attraction at a rally for expanding Social Security and Medicare, Sanders was just starting to address the crowd, thanking Seattle for being “one of the most progressive cities in the United States of America.”

That’s as far as he got, as a pair of women walked onstage and grabbed the microphone.

[….]

Actually, some commentary is deserved. That a Democratic political rally would allow “a handful” of demonstrators to shut down and hijack their event shows how deeply liberals have drunk the White Guilt Kool Aid.

[….]

Some presidential material. Once upon a time a candidate might have said, “I’m paying for this microphone you little shits.”

Pass the popcorn indeed. No extra butter necessary.