Background on the bill from Glenn Greenwald & Ryan Grim: https://theintercept.com/2017/07/19/u-s-lawmakers-seek-to-criminally-outlaw-support-for-boycott-campaign-against-israel/
Seattle PI (Joel Connelly) on Cantwell's Support for bill: http://www.seattlepi.com/local/politics/article/Connelly-Cantwell-is-sponsor-of-controversial-11303051.php
@LeeCamp says: NOW'S THE TIME TO ACT!
Senate bill 720CALL CANTWELL! 1 (202) 224-3441
FYI: @SaneProgressive has a youtube that calls these bills a criminalization of protest against the Palestinian genocide: https://youtu.be/uBbjuLso5Tg (language not safe for work)