Could be an inside job. Why would someone go after his signs when he has very little to no chance to win? Sounds like a last ditch effort to take a chance to draw maybe some attention? But there are plenty of crazy people out there willing to break the law regardless of political views, so anything is possible.

But yeah people.. don't break the law.. don't go after political signs.. be the America you want to live in and don't stoop to the lows used by others.