Organized labor managed an increasingly rare feat on Monday — a political victory — when its allies turned back a Senate measure aimed at rolling back labor rights on tribal lands.

The legislation, called the Tribal Labor Sovereignty Act, would have exempted enterprises owned and operated by Native American tribes from federal labor standards, even for employees who were not tribal citizens.

The notion of bringing home 80 cents for every dollar pocketed by a man on a national basis is unsettling enough. But it's even more startling when those lost wages are added up.

Overall, it amounts to $10,000 in lost wages a year, says Debra Ness, president of the National Partnership for Women and Families. That chunk of cash could pay for 14 more months of child care, 74 more weeks of groceries and an additional 10 months of rent for the average woman.

As America prepares to observe the 50th anniversary of Dr. Martin Luther King Jr.'s assassination today, there is one name you may not hear: Bayard Rustin. A close confidante and mentor of King, Rustin was a key leader of the civil rights movement and chief organizer of the 1963 March on Washington for Jobs and Freedom. He proved to be a transformative figure in the fight for racial justice, even introducing King to the Gandhian principles of nonviolence that would come to define the struggle. He also happened to be gay.