Tapping into the same anger that fuels the conservative tea party movement, a coalition of progressive and civil rights groups marched Saturday on the Lincoln Memorial and pledged to support Democrats struggling to keep control of Congres.

With a month of campaigning to go and voter unhappiness over the economy high, the Democratic-leaning organizers hope the four-hour program of speeches and entertainment energizes activists who are crucial if Democrats are to retain their majorities in the House and Senate. The national mood suggests gains for the Republicans, who are hoping to ride voter anger to gain control of the House and possibly the Senate.

Organizers insist the rally is not partisan. They say the message is about job creation, quality education and justice. However, the largest organizations, such as the AFL-CIO labor federation and the Service Employees International Union, tend to back Democratic candidates.

But the first speakers hardly shied from criticizing Republicans.

In a fiery speech that opened the "One Nation Working Together" rally on the National Mall, MSNBC host Ed Schultz blamed Republicans for shipping jobs overseas and curtailing freedoms. He borrowed some of conservative commentator Glenn Beck's rhetoric and vowed to "take back our country."

"This is a defining moment in America. Are you American?" Schultz told the raucous crowd of thousands. "This is no time to back down. This is time to fight for America."

"We are together. This march is about the power to the people," said Schultz. "It is about the people standing up to the corporations. Are you ready to fight back?"

More than 400 organizations _ ranging from labor unions to faith, environmental and gay rights groups _ partnered for the event, which comes one month after Beck packed the same space with conservatives and tea party-style activists.

Beck and former Alaska Gov. Sarah Palin gathered near the Lincoln Memorial on the anniversary of Martin Luther King Jr.'s "I Have a Dream" speech to urge a vast crowd to embrace traditional values. Though also billed as nonpolitical, the rally was widely viewed as a protest against the policies of President Barack Obama and congressional Democrats.

One Nation organizers said they began planning their event before learning about Beck's rally, and said Saturday's march is not in reaction to that.

Obama was spending the weekend at Camp David, the presidential retreat in Maryland.

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Online:

Rally site: http://www.onenationworkingtogether.org