I don't get it either. But unfortunately that's the world of politics that we live in. Just ask Mitch McConnell when he said "his number one priority was to make Obama a one term president."
Everyone is either a Democrat or a Republican. Americans have forgotten how to be Americans. It's like John F. Kennedy once said..
"Let us not seek the Republican answer or the Democratic answer, but the right answer. Let us not seek to fix the blame for the past. Let us accept our own responsibility for the future."