They’re feeling blue. Democrats’ stunning Election Day losses have raised a slew of questions about the path forward. Will they double down on liberalism and demographic destiny? Tack to the center? Reconnect with the working class? The coming Democratic National Committee chairman’s race will offer clues. Dems will choose among Rep. Keith Ellison, a Black Muslim progressive firebrand; former chief Howard Dean, who presided over banner successes in the 2006 and 2008 elections; and upstart South Carolina party leader Jaime Harrison, who brings a red-state perspective.