Rich Americans, far more likely to vote than their poorer fellow citizens, also differ in how they vote and what policies they favour. These undisputed facts lead to the widespread belief ‘that if everybody in this country voted, the Democrats would be in for the next 100 years.’ The gist of this conclusion, which seems to follow ineluctably from our opening sentence, is accepted by almost everyone except a few empirical political scientists. Their analyses of survey data show that no objectively achieved increase in turnout – including compulsory voting – would be a boon to progressive causes or Democratic candidates. Simply put, voters' preferences differ minimally from those of all citizens; outcomes would not change if everyone voted. John Kenneth Galbraith, Interview in California Monthly, February 1986, p. 11.