Jamelle Bouie: Democrats are crazy to leave any worker behind

Organized labor is the lifeblood of liberal politics in the United States. Unions backed Franklin D. Roosevelt’s New Deal reforms, gave critical support to the fight for the Great Society and powered Democratic political victories throughout the 20th century. Even now, the Democratic Party is generally strongest in states where organized labor has the most influence.Despite this clear, partisan incentive for pro-union policies, too many elected Democrats have failed to make labor enough of