Two union leaders and longtime Democratic National Committee members have resigned from the national party, marking the latest internal dispute of chairman Ken Martin's tenure. The departures of American Federation of Teachers leader Randi Weingarten and Lee Saunders, the president of the American Federation of State, County and Municipal Employees, comes as the party has tried to establish itself as a counterweight to President Donald Trump. Both Weingarten and Saunders had endorsed Martin's top opponent for the DNC chairmanship, former Wisconsin Democratic Party chair Ben Wikler. After Martin reshuffled top committee placements, Weingarten and Saunders were removed from the powerful rules and bylaws committee. Both were offered at-large positions but declined them.