Navigating the looming showdown over gun-control reforms could prove tricky for those lawmakers up for re-election in 2014. Red-state Democrats such as Sens. Max Baucus of Montana and Kay Hagan of North Carolina have the most to lose from supporting background-check reforms, but some lawmakers fret that siding with the National Rifle Association also could prove costly. "When the next shooting happens, as it will, are they prepared to defend a vote against a restriction that might have stopped it?" asks Jill Lawrence of the National Journal.

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