Officials say about 84,000 Nevada Democrats participated in Saturday’s caucuses, which is nearly 30 percent fewer than in 2008. About 14,000 of those voters registered the day of. But in 2008, there were 118,000 Democratic voters who caucused, with about 30,000 registering the same day. State party officials also said 65 percent of Saturday’s participants were first-time caucus-goers and 41 percent of them were minorities.