An aging sign at City Hall in Stockton, Calif. A judge has ruled that the city is eligible for federal bankruptcy protection. Justin Sullivan/Getty Images hide caption

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Sen. Marco Rubio, R-Fla., says talk of a bipartisan agreement among eight key senators working on immigration law is "premature." Susan Walsh/AP hide caption

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Opposition research is becoming a given in politics, sometimes even at the local level. iStockphoto.com hide caption

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Opposition Research Boot Camp: Learning To Dig For Political Dirt
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Bipartisan Group Of Senators Could Have Immigration Bill Drafted By Next Week
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The home of Kaufman County District Attorney Mike McLelland is surrounded by police tape in Forney, Texas, on Monday. Authorities launched a massive investigation into the weekend killings of McLelland and his wife. Tim Sharp/Reuters /Landov hide caption

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The Politics Of The Guest-Worker Program
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Cable And Corruption In Southern California
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Tensions Build In Detroit After Schools Takeover
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Struggling Schools Targeted For Takeovers
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Is Congress Close To Immigration Compromise?
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Supporters Of Gay Marriage Appear To Gather Momentum
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