Six years ago next week, Jon Stewart first let me come on his show to talk about how the biggest banks on Wall Street had just broken our economy. And bless him, even though I had such gut-wrenching stage fright that I threw up back stage, Jon has invited me back year after year – as a law professor, a government advisor, a candidate and a senator – to talk about how we’re fighting to level the playing field. So it’s bittersweet for me to tell you that tonight I’ll be back on The Daily Show for