"Rent-a-mob"? Not on your life.
I'll grant you that most of these protestors will not be paid to be their. Those organising and directing the protests will be paid of course but most of the rest will be the kind of people who engage in this kind of anti-social 'activism' for a hobby.
I notice that those who engage in this kind of behaviour will frequently claim to be the voice of 'the people'. They are not, they represent themselves. The purpose of a townhall meeting is to allow constituents who want to learn his views on various issues to ask him questions, express their concerns and to hear what he has to say in response. The purpose is not to allow organised groups of far left activists to disrupt and hijack the event and turn it in to their own event.
Other people don't show up to these events so they can spend their time listening to loudmouth leftists rant and speak their brainz. If they had wanted to do that they could have just stayed at home and watched TV. As I said the Congressman is a big boy and part of his job is putting up with being heckled by these kind of people. However he has a responsibility to the majority of his constituents not to allow this kind of people wreck his townhalls for everybody else.
I love how the right hates free speech. Sad! Triggered People!