Sen. Hillary Clinton of New York, Sen. Barack Obama of Illinois and Sen. John Edwards of North Carolina will address questions on immigration and other issues related to minority groups, the party said.

The debate Tuesday night will be broadcast and streamed live by MSNBC and questions can be filed at either the msnbc.com or januarydebate.com Web sites, the company said. It will be moderated by "NBC Nightly News" anchor Brian Williams.

The debate is sponsored by the U.S. Hispanic Chamber of Commerce, 100 Black Men of America, IMPACTO, the Democratic African-American Leadership Council, the College of Southern Nevada and the Nevada Democratic Party.