Democratic presidential hopeful Hillary Rodham Clinton on Saturday accepted the endorsement of a 230,000-member labor group that will soon be formed through a merger.

SMART, the International Association of Sheet Metal, Air, Rail and Transportation Workers, will merge the Sheet Metal Workers' International Association and the United Transportation Union in January. The New York senator had previously received the endorsement of the transportation union, which is the larger of the merging unions with 125,000 active and retired members in the railroad, bus and public transit industries.

Clinton also spoke on Saturday at a rally at a high school in a largely Hispanic district of North Las Vegas, with the support of the Hispanic immigrant elected to the Nevada legislature, Assemblyman Ruben Kihuen.

The day's events highlighted Clinton's large lead in the early caucus state, which the Democratic Party had moved up in the presidential nominating calendar to raise the profile of union members and Hispanics in choosing the presidential nominee.

"We wanted to show the diversity of America and I'm proud to have so much Latino support," Clinton said at Rancho High School.