Earlier this month, the U.S. Senate voted against several gun control measures, including a bipartisan plan that would have expanded background checks for firearm purchases online and at gun shows. The compromise proposal was backed by 54 senators, but fell short of the filibuster-proof 60 votes needed for it to pass. President Obama, who has been pushing for stricter gun regulations following the Newtown school shooting in Connecticut last December, promised to continue to fight for tougher gun legislation. He called the setback "just round one" in his campaign to reduce gun violence. A longtime proponent of stricter gun laws, New York  Representative Carolyn McCarthy considers how the battle over gun control is likely to develop, following the recent defeat in the Senate.