You do it by framing the debate around meaningful policy changes, and immediately delivering on those changes at every opportunity to do so. Progressive policies will meaningfully improve people’s lives in almost every way. Force those centrist voters to think. Clearly paint a picture of the vast wealth inequality that exists between the elite and normal Americans. Force them to ask themselves why other candidates don’t want them to have better pay, more time with their families, free access to the best medical care, and free access to higher learning to improve themselves and learn new skills. These things are the “bootstraps” repugs love to harp on about, and progressives must lead the charge in enabling our people to take hold of them.