Nevada Provides Next Test for US Presidential Candidates

The U.S. presidential contest has moved to another state. Arid, sparsely-populated Nevada holds its nominating caucuses Saturday, and already thousands have cast their ballots in early voting. Candidates are competing for the votes of 200,000 union members. As VOA's Carolyn Presutti reports from Las Vegas, securing union backing is more challenging than in previous election years.

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