The Story Behind Clinton's Jab At Sanders' One Wall Street Vote | ThinkProgress

Sanders voted in favor of passing Ewing’s original CFMA in October of 2000 and for the appropriations package that included Gramm’s end-around rewrite of it in December of that year. It’s that second vote that helped slam the door on regulations for derivatives. Again, such regulation wouldn’t have prevented the housing bubble, but it could at very least have put a canary in the mine on the elaborate system of interlocking wagers that investors placed on and around that bubble...
http://thinkprogress.org/economy/2016/02/05/3746742/clinton-sanders-derivatives-regulation/