The Purge: Election Year (Blu-ray release 2016-10-4) is the third movie in the franchise that imagines USA to have an annual purge that allows people to legally murder each other.  This time the purge is used by the bad guys to eliminate a political enemy, and it rationalizes the purge by taking the view of reducing the economic burden of taking care of the poor.

I think the first half of the movie is fine in introducing the political views and new elements of the purge, but then it degenerates into a generic mess of people killing each other in stupid ways – such as dropping guns and having hand to hand combat instead.