Saw on 8kun there was a Craigslist ad for people to be in DC on June 14. I followed the link and expected it would be for protestors. Well, it might be, but they're asking for people to fill seats, wear red white and blue, a red hat will be supplied...
so I responded to the ad and will post what I find out. The other ad that was posted is no longer up, Craigslist says it is under review. 
Here's screen shot and link the the ad I replied to:
https://washingtondc.craigslist.org/doc/tlg/d/washington-seat-fillers-needed-june/7857143452.html