Several Pro-Gun Democrats Rethinking Their Positions

Newtown school shooting motivating some to say they could back federal gun-control measures

Several key Democrats on Monday said they were rethinking their opposition to gun control, in a sign that Friday's mass-murder in Connecticut has upended the congressional debate on firearms.

Senate Majority Leader Harry Reid (D-Nev.) was among several Democratic defenders of gun rights to signal a new openness to legislative restrictions in the wake of the attack in Newtown, Conn.