Unless the GOP is cheating, which I sometimes believe they are, like you I'm baffled also. But I have a theory as to why they vote against their own best interest and it has to do with racism.... a lot of people in this country, including the we's white Latino's and Asians, a lot associate their allegiance to Republicans based on social media's depictions of urban negro's and the violence portrayed. Push aside your typical racist and misogyny GOP voter and you'll find a lot of voters see these sorry ass negro's all over social media stealing, killing doing crazy fucked up shit and they don't like it, the GOP horns in on that and exploits it to the core. Latino's and Asians as do most immigrants that come to this country all feed their opinions off of the shit they see on social media, so they come here hating on us automatically, they see liberal politicians ignoring those troubling trends and how to address urban violence and guess who's there waiting on them in the dark, THE CONSERVATIVE PARTY.