From arizonadailyindependent.com:

There was no word of it on his official website. Not a peep on Facebook. Mysteriously, news reports of a John McCain town hall on Tuesday made their way into Republican circles and conservative corners.

Few of them knew about it beforehand and the few that were aware were “friendlies” to the McCain camp, which meant that the Tucson town hall was small. These days the only large crowd that might show up for a McCain event in Southern Arizona would be carrying picket signs demanding his resignation.

The “staged” town hall included mostly democrats and long time establishment republicans. The few grassroots republicans and conservative independents were ignored.

http://www.arizonadailyindependent.com/2013/08/15/conservatives-say-mccain-staged-tucson-town-hall/