Democrats have widened their registration lead over Republicans in Nevada. The Nevada Secretary of State’s Office reported Republicans added nearly 12,000 new voters to their ranks last month, while Democrats added more than 17,000. Democrats now have a 77,000-voter advantage over Republicans among the almost 1.4 million active registered voters in the state. Registered nonpartisans are now 20 percent of the voter base, compared with about 15 percent in 2008.