If anyone bothered to read more than this shitty reblog version of the story, the guy is clearly not driven by politics. He’s a run of the mill criminal that just wanted to be arrested so he did something he knew would do that. That is not exactly uncommon, jail will give you a place to sleep and guaranteed meals. For some people, that have little to nothing else in their life, that little bit of security is worth it. It had nothing to do with the ballots.

But this is the internet, no one reads past a headline. And even fewer are going to look for a better source, even the one linked in this exact reblog crap post.

From the actual ABC15 article:

Phoenix police say surveillance video helped them quickly track down and arrest the suspect, a 35-year-old male, for an unrelated warrant. While in police custody, he allegedly admitted to starting the fire but claimed he “wanted to be arrested” and that his actions were not politically motivated and unrelated to the election.
A USPS spokesperson and postal inspector told ABC15, “This does not happen often and is rare,” and urged people to place mail in collection boxes before the last collection time each day.

His motivation for doing it makes no difference to the laws broken or sentencing. There’s no reason for him to claim it wasn’t political if it was.