Beginning with a historical perspective on the long and short past of political theory, I argue for three priorities for the field's future: (1) theorizing why and how constitutional democracies corrode and die, and what might be done to stop rising authoritarianism and fascism, as well as racism and misogyny, in liberal egalitarian political systems; (2) the advancement of more predictive and future-oriented forms of political theory to address democratic corruption, democratic backsliding into authoritarianism, and other urgent political problems; and (3) the need to diversify the field and the wider discipline of political science by advancing women and people of color. To stay true to its own history, political theory should lend a helping hand to politics and society when democracy is in crisis.