As the Senate prepares to take up the first major gun control debate since last December's shooting massacre in Connecticut, a Sunlight Foundation analysis of the political pressures on 26 key senators paints a pessimistic picture for passage. Absent a major pressure campaign to push senators to support gun control legislation, the political calculus points against the Senate passing any reform.
The infographic below details the various pressures senators face on a gun control vote. We've collapsed the factors into a single Gun Reform Index, where 10 is most likely to support gun reform and 0 is least likely. The index ranks each senator relative to other key senators within their own party. More details and explanation follow the graphic.