But we've also seen how government action time and again can make an enormous difference in increasing opportunity and bolstering ladders into the middle class. Investments in education, laws establishing collective bargaining, and a minimum wage -- these all contributed to rising standards of living for massive numbers of Americans. Likewise, when previous generations declared that every citizen of this country deserved a basic measure of security -- a floor through which they could not fall -- we helped millions of Americans live in dignity, and gave millions more the confidence to aspire to something better, by taking a risk on a great idea.