The Democratic campaign for president took another wild and unexpected turn Tuesday night, dramatically lifting the candidacy of former vice president Joe Biden and suddenly putting the onus on Sen. Bernie Sanders (I-Vt.) to demonstrate that he can expand his base of support.
The Democratic contest has been transformed almost overnight from one with many candidates and no clear alternative to Sanders into a head-to-head battle that pits a populist insurgent preaching revolution and democratic socialism against an establishment-backed politician calling for modest change and civility and claiming greater electability against President Trump. CONT.
Dan Balz, Washington Post