OK, now I'm understanding why the Emergency System test is linked to the Kav. confirm vote.
Paul Sperry claims on his twatter:
"BREAKING: Radical anti-Kavanaugh activists from several national leftwing groups planning to bus in protestors and hold protest-training program in DC on Sunday & then stage massive protests and disruptions next week on Capitol Hill to intimidate senators … details to come …"
https://twitter.com/paulsperry_/status/1043318726265905152