The AFL-CIO, the nation’s largest labor federation, gave Hillary Clinton its endorsement Thursday, ensuring the presumptive 2016 Democratic presidential nominee will have organized labor’s backing in the fall.

“Hillary Clinton is a proven leader who shares our values,” said AFL-CIO President Richard Trumka. “Throughout the campaign, she has demonstrated a strong commitment to the issues that matter to working people, and our members have taken notice. The activism of working people has already been a major force in this election and is now poised to elect Hillary Clinton and move America forward.”