The president's recent evolution on marriage equality has helped African American voters evolve too.

Author Jeff Chang on the history of hip hop and revolutionary rap music

Tom Morello leads an army of guitarists through the streets of New York City.

Watch and listen to some of the most famous and influential protest songs in modern history, and suggest your own.

RoseAnn DeMoro explains how a small government levy on financial transactions could make a big difference for needful Americans.

Two premier lawyers -- one conservative and one liberal -- explain why they joined forces to fight for same-sex marriage rights in California's Prop 8 case.

The social media network is fighting a court order to hand over information about an Occupy protester.

A new report indicates that last week's May Day protests didn't recapture mainstream media's interest in the movement.

Peter Dreier describes how May 1 will "give voice to the growing crusade for democracy and equality."

In an excerpt from his book, Ross Douthat says preacher Joel Osteen embodies "the refashioning of Christianity to suit an age of abundance."