Two points.
1. Where are the conservative to provide him cover. Why did none show up.
2. The libs are now going after GOP members, seeing them as the way to bring down Trump.
Point one puts point two in check.
Maybe our side is NOT there because WE are sick to death of these ASSHATS not backing POTUS TRUMP!!! Our side feels like we are wasting our breath talking to these BASTARDS!!! They have all three houses of government in 100 years and all we STILL get are EXCUSES!!! Trump IS out there on his own these BASTARDS have done NOTHING to back him up!!
The leftist rent-a-mobs were likely there first, and in overwhelming numbers, so that the people who actually wanted in on the town hall could not attend.