Effectively a union for Border Patrol agents, this endorsement is surprising. They normally do not endorse candidates, for one thing. For another, it's Donald Trump they're endorsing, not just a Republican but the official choice of Worst Republican To Be Hated Most this year. I find it amazing that a public-sector union would endorse a Republican at all, let alone one so thoroughly painted as a racist hatemonger.
Clearly they are tired of the status quo on the border.