Joe Biden used to be a progressive Democrat. What happened? | Bhaskar Sunkara

Social security and Medicare are the two most popular programs ever developed by the Democratic party. But Biden joined Republicans to try to cripple them

Bernie Sanders and Elizabeth Warren supporters not looking forward to a potential Joe Biden nomination might want to time-travel back to 1972.

That year, Biden was an underdog Senate candidate running against a popular incumbent. With his sister, Valerie, as campaign manager and limited resources, he knocked on hundreds of do...