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Scarborough: Heidi Heitkamp should be ashamed of herself
Top Talkers: GOP Sen. Kelly Ayotte's approval rating seems to have declined in her state of New Hampshire after voting against expanding background checks. The Morning Joe panel -- including Time's Mark Halperin and MSNBC.com's Richard Wolffe -- discusses the pressure on Ayotte from Gabby Giffords' group and Sen. Heidi Heitkamp's, D-N.D., vote against background checks.