Democratic U.S. presidential hopeful Biden aims to keep Nevada on his side

FILE PHOTO: Democratic 2020 U.S. presidential candidate Joe Biden visits the United Firefighters of Los Angeles City headquarters in Los Angeles, California, U.S., January 10, 2020. REUTERS/Ringo Chiu

SPARKS, Nev. (Reuters) - Democratic U.S. presidential candidate Joe Biden, who wears the nickname "working class Joe" with pride and courts a multi-racial voter base, faces a stern test of his ability to win nationally in Nevada's mining towns and unionized gambling parlours.

Nevada's Feb. 22 nominating contest is the third one in the state-by-state process of picking a Democratic nominee to face Republican President Donald Trump in the Nov. 3 general election. The former vice president's advisers have said Biden's strength in the Democratic race will show in racially diverse states such as Nevada, with its large Latino population, and South Carolina, with its sizable black population.