If they vote. Turnout in municipal races is low, especially for primaries, so if a few hundred young people get registered and turn out for Willie Reynolds, they can easily swing the election. But the key is getting engaged and plugging into the campaign. People doubt this stuff works, but it totally does. Go volunteer and make phone calls at the campaign office. Go get some walk lists from Willie and go out and knock doors for a few hours on a weekend morning. The boring stuff is the most important exercise of political power.