Rep. Ron Paul (R-Texas), who has staked his presidential campaign on winning delegates in caucus states, came in third with 4,619 votes, or 19 percent, while former Sen. Rick Santorum (R-Pa.) was in fourth place with 2,749 votes, or 11 percent.
Nevada will award its 28 delegates proportionally. Five other states will hold nominating contests this month.
Terri Henderson, 6, center, whose mother is El Salvador, attends a rally with members of Congress at Union Station's Columbus Circle to announce the Restore Opportunity, Strengthen, and Improve the Economy (ROSIE) Act on July 29, 2014. The legislation provides incentives for government contractors to pay a living wage and other benefits that would help low-income workers.