Two leaders of some of the largest labor unions in the country say they are leaving the Democratic National Committee (DNC), citing disagreements with the committee’s leadership over its future.

Randi Weingarten, the president of the American Federation of Teachers, wrote in a June 5 resignation letter to DNC Chair Ken Martin that she felt “out of step with the leadership you are forging.””I do not want to be the one who keeps questioning why we are not enlarging our tent and actively trying to engage more and more of our communities,” Weingarten wrote in the letter, obtained by CBS News.Lee Saunders, the president of the American Federation of State, County and Municipal Employees (AFSCME), declined his nomination as a member of the DNC weeks ago in a letter to Martin, his union confirmed. Saunders said his decision was about the future for working people and the party.