Krugman's horrible idea

He thinks that a Clinton/Warren ticket is a good idea, with Clinton at the President. He surmises that Warren will keep Clinton from going too far right into Wall Street's back pocket. Not likely. If anything, Warren as VP would be muzzled from her current status as the outspoken leader of the progressive movement, along with Senator Sanders. A Sanders/Warren ticket would be formidable, with either one in the lead slot. But could either beat Clinton in the primary? I think both of them could.