By Kate Linthicum
September 9, 2013, 12:50 p.m.

In a fiery speech Monday, the leader of the nation’s largest labor federation took aim at top American corporations and the U.S. Supreme Court, which he accused of waging a “war on democracy.”

Speaking to thousands of union members at the AFL-CIO convention in Los Angeles, President Richard Trumka denounced the “powerful forces in America today who want our country to be run by and for the rich.”

He singled out Wal-Mart and McDonald’s, saying “their whole business model is about keeping the people who work for them poor,” as well as Wisconsin Gov. Scott Walker, whom he called an “apostle of greed” for his efforts to limit collective bargaining by public employee unions.

MORE: The AFL-CIO in Los Angeles

Trumka’s scorching remarks came on the second day of a convention that he has sought to portray as a crucial turning point for a shrinking labor movement that has seen membership fall to just 11% of American workers, down from 35% in the 1950s.

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