Democratic primary: Biden, Sanders and Warren,The three favorites face to face in Thursday

Democratic primary: Biden, Sanders, and Warren ... The three favorites face to face Thursday.
Now we do not play anymore. After two warm-up debates this summer, the top ten Democratic contenders will face the cameras this Thursday in Houston. And Joe Biden is expected at the turn against Elizabeth Warren and Bernie Sanders, after a first catastrophic performance followed by many gaffes in the past two months.