It's only supported By the vast majority of Americans if you water down the question to "do you support background checks." I support background checks myself.
The issue is there was a lot more in this bill aside from background checks that do not enjoy the vast majority of Americans as supporters. And that's before you get to the amendments of your favorite Democrat busy bodies like assault weapons bans and magazine restrictions which similarly do not have majority support.
The fact that nothing in any legeslation proposed thus far would have done anything to stop any high profile shooting and have all failed to impact crime in precious iterations is almost besides the point. Almost.
Democracy spoke, and Obama thinks is shameful. Nobody gives a crap about what he thinks iis shameful or not, and whether you agree with him not his constant sanctimonious whining is not helping his cause. It just makes him look like a douche.
Seems to be an odd use of the word democracy, when the majority of a legislative body favoured something and it failed.