U.S. Rep. Joe Baca of California, shown at the 2008 Democratic National Convention, learned the power of superPACs firsthand this year, when he lost for the first time since he was elected in 1999. Jae C. Hong/AP hide caption

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How To Oust A Congressman, SuperPAC-Style
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Peter G. Peterson speaks at the Fiscal Summit in Washington, D.C., last year. The event was sponsored by the Peter G. Peterson Foundation. Jason Reed/Reuters/Landov hide caption

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Fiscal Cliff Siren: Meet The Man Behind The Curtain
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A supporter of President Barack Obama raises his arms as it is announced that Obama was re-elected during an election night watch party in Chicago. Jerome Delay/AP hide caption

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With Millions Spent, GOP 'Investors' Saw Little Return Election Night
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Karl Rove, former adviser to President George W. Bush, speaks last year in Corpus Christi, Texas. Rove is the chief fundraiser for the biggest outside spender this election season: the twin groups American Crossroads and Crossroads GPS. Michael Zamora/AP hide caption

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Outside Groups Spend Big On Elections, But Don't Have Much To Show For It
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Former Virginia Gov. Tim Kaine is joined by his wife and daughter in celebrating his Senate victory over Republican George Allen. Mike Theiler/UPI /Landov hide caption

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Voters participate in early voting Friday in Silver Spring, Md. Alex Wong/Getty Images hide caption

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Any Way You Describe It, 2012 Campaign Spending Is Historic
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The Campaign to Defeat Barack Obama, a small-donor PAC, has launched a bus tour to reach conservative voters in hotly contested states, while trying to raise money to launch an anti-Obama TV ad. Yfat Yossifor/Courtesy of Mlive.com hide caption

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With Buses And Billboards, Small-Money Groups Try To Make A Mark
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A screenshot of an anti-Obama text message received Tuesday evening. NPR hide caption

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Mysterious Anti-Obama Spam Texts Linked To Republican Consulting Group
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Obama Campaign Expected To Top $1B In Fundraising
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Obama Holds Advertising Advantage Over Romney
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Costumed demonstrators on Oct. 3 in Denver, before the first presidential debate. Doug Pensinger/Getty Images hide caption

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Study: Secret Donors Significantly Fueling Pro-Romney TV Ads
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Outside Groups For Romney Coordinate TV Ad Buys
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