It's because the right benefits from low turnout. The left, representing the interests of the proletarian majority, benefits from large turnout. The Democratic

It's because the right benefits from low turnout. The left, representing the interests of the proletarian majority, benefits from large turnout. The Democratic party, a center left or center right party depending on who you talk to, has co-opted the left voter base and thereby depends on higher turnout during general elections. As a centrist party, they intentionally suppress turnout during primary elections (e.g. by not advertising the date in my community) to restrict ideological choices.