Where does that 90% figure come from? What was the question that got 90% agreement. It wasn’t for this bill...I know, but it was for some general platitude. I’d like to know so I could quote it for all the idiots on Facebook.
Washington Post-ABC News Poll April 11-14, 2013: "Would you support or oppose a law requiring background checks on people buying guns at gun shows or online?" Support: 86 percent. Oppose: 13 percent.
Even if this figure is close to accurate, it doesn't really matter if the intensity isn't there. As many have pointed out, people who support gun rights care very strongly about this issue 24/7/365 while the majority of those who support more gun laws don't care much about the issue at all and usually only immediately following a major tragedy. Gun rights supporters are a powerful block and they'll easily vote against any politician who threatens these rights even if they agree with them on everything else.
the left-leaning Daily Beast summed it up pretty well in a recent article, Why the President Lost on Gun Control