In Wisconsin, voters don’t register by party, which makes it trickier for the GOP to identify which voters to contact. But after recent elections, including the presidential primary in April and the state-senate recall elections last summer, Wisconsin’s GOP has become expert at identifying who in the state is willing to vote for a Republican candidate. “In 2010, to put this in perspective, we made about 2 million voter contacts,” said Wisconsin GOP communications director Ben Sparks. “For the recall, we made nearly 5 million voter contacts. So we more than doubled the metrics of our ground operation from the 2010 cycle, when Republicans made historical electoral gains throughout the state.” Ultimately, the RNC is hoping that the ground game in Wisconsin will prove to be an accurate predictor of how both parties will do in the fall.