Thus Dewey argued that we should recognize positive liberty as well as negative liberty, meaning that e.g. just as we ought to recognize a right to live without someone killing you, we similarly ought to recognize a right to live without dying due to lack of food. Thus American liberalism advocates that the government should play some role in the economy in order to give people autonomy and enable them to pursue their own happiness, along the lines of the "responsiveness" part of the Progressive philosophy. Thus Americans liberals still try to achieve the goals of classical liberalism, but they sometimes do it through Progressive means. (This is akin to how, as I discuss herehere, American conservatism tries to achieve the goals of traditionalism, but often through libertarian means.)
(I discuss the underpinnings of American conservatism herehere if you're interested.)