Ever since the 2016 primaries, the Warren/Sen. Bernie Sanders (I-VT) wing of the party has become more vocal, more active, and completely blinded with rage over Donald Trump’s 2016 win. Many are saying the moderate, centrist path that kept Bill Clinton in the White House for two terms is over, and that Jon Ossoff, who lost the most expensive House race in Georgia, lost because he took a middle way in messaging. They’re gung-ho about making single-payer the new litmus test. First, they’re having a fight about abortion and whether backing pro-life Democrats is akin to making a deal with...