This is old news, but still relevant:
Donald Trump Campaign Offered Actors $50 to Cheer for Him at Presidential Announcement
http://www.hollywoodreporter.com/news/donald-trump-campaign-offered-actors-803161
>We are looking to cast people for the event to wear t-shirts and carry signs and help cheer him in support of his announcement.
>We understand this is not a traditional “background job,” but we believe acting comes in all forms and this is inclusive of that school of thought.
They also bought a footer ad here around that time, which makes me almost certain they are astroturfing in /pol/.