President Obama lays down his marker on guns and exhorts Congress to act. But the House has no intention of voting to ban assault weapons, and rural Democrats in the Senate remain skittish. Meanwhile, Chuck Hagel gets some important backers in his bid to join the cabinet, and Mark Sanford hopes all is forgiven as he tries to return to Congress. But if he deserves a second chance, then so do NPR's Ken Rudin and Ron Elving.

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