" The next little thing about this vote-for-the-lesser-evil trick, of course—and this is no secret to anyone anymore—is that it drives all the “serious” candidates toward what is commonly referred to as the “moderate center,” even if these serious candidates aren’t, in fact, moderate or centrist in any meaningful sense and the so-called center moves further to the right with each election cycle. For nearly two decades now this process has been steadily advancing on the Democratic side, as liberals are trained to accept the idea that the national majority will never accept a true labor party, or any candidate perceived as “soft” on defense. "

― Matt Taibbi