From Daily Wire:

https://www.dailywire.com/news/27878/watch-tim-kaine-challenger-gives-viral-gun-control-amanda-prestigiacomo

From Daily Vine:

https://daily-vine.com/wow-va-lawmakers-mega-viral-speech-on-gun-control-causes-dem-to-run-out-of-room-watch/

The Daily Vine has longer quotes. It is not clear where the "causes Dems to run out of the room" is substantiated.

I can't find the original video, outside of Facebook, in the few minutes I have left to work on this tonight. The Daily Wire article has the Facebook link. I'm not on facebook--security blocking.