Voting underway in Nevada caucuses

Voting is underway across Nevada as the most diverse state so far has its say in the Democrats' nomination fight.

Presidential candidates made their last urgent pleas as voters prepared to weigh in. Saturday's caucuses are the third contest in a 2020 primary season that has so far been marred by chaos and uncertainty in overwhelmingly white, rural states.

While state officials aren't promising they'll report results on Saturday, Nevada's first-in-the-West caucuses will test the candidates' strength with minority voters for the first time in 2020.

Self-described democratic socialist Bernie Sanders has emerged as the front-runner in the still-crowded field.