In 2012, California unions defeated Prop 32, an anti-union measure funded by the Koch Brothers and other corporate interests, by using a unique combination of sophisticated microtargeting and online advertising to supplement a traditional field and media campaign. This effort led to a 13-point victory and produced down-ticket effects, including passing Prop 30 (which taxes the rich) and capturing two-thirds Democratic majorities in the State legislature. This session at Netroots Nation 2013 discussed how labor used ground-breaking microtargeting online and in the field to connect with new and hard-to-reach younger voters who watch little TV or traditionally engage on political issues.