United Auto Workers members march in the Detroit Labor Day Parade on September 4 in Detroit, Michigan.
Mandatory Credit:	Bill Pugliano/Getty Images

United Auto Workers members march in the Detroit Labor Day Parade on September 4 in Detroit, Michigan.
Mandatory Credit: Bill Pugliano/Getty Images

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Biden calls on automakers to improve their offer to striking workers as he faces the biggest labor crisis of his presidency so far

President Joe Biden on Friday called on major American automakers to improve their offer to workers as a strike of the United Auto Workers poses a political and economic test for the White House.