Bernie Sanders 2020: Data shows how he could win

A few hours before Bernie Sanders announced he was officially running for president on Tuesday morning, Gallup released a report on the state of public opinion inside the party — one with clear relevance for Bernie’s 2020 effort. The report examines how the Democratic party has changed over the past 18 years, and finds the party’s voters are becoming increasingly left-wing. That helps explain not only Sanders’s then-surprising success in 2016, but why he’s (correctly) seen as one of the frontrunners today.  In recent years, for the first time in Gallup’s polling, more Democrats have self-identified as “liberal” than “moderate” or “conservative”.