CNN —
President Joe Biden on Monday celebrates Labor Day in Philadelphia as he courts one of his most important constituencies at a moment when the labor movement is attempting to reassert its strength.
Biden’s trip to the City of Brotherly Love – one of his most frequent stops for presidential travel – will mark his latest attempt to woo the union members who have made up the backbone of his political coalition for decades. He is set to speak to a local sheet metal workers union hall.
While the president is firmly supported by top union leaders and quickly received endorsements from some of the
