Joe Biden has accused Democratic rival Bernie Sanders of “joining Trump” after both the Vermont senator and a Republican Party official criticised the former vice president’s heated exchange with an autoworker. While visiting the Fiat-Chrysler car plant in Detroit on the day he and Mr Sanders look to win support from voters in six states, including Michigan, Mr Biden snapped at a worker who told him he was opposed to the 2nd Amendment, that part of the US constitution gun rights advocates claim gives them the right to bear arms. “You’re full of sh*t. I support the 2nd Amendment,” Mr Biden told the worker.

Mr Biden’s exchange was captured live and can be viewed here