Huerta, who has endorsed Clinton, called out Sanders in a post on Medium this week for voting for bills and deportation programs that he has since criticized.

The results in Nevada are particularly crucial, because it is the first state with a significant minority population to vote for a presidential nominee, and is expected to set the tone for how influential minorities will be in the race. Four in 10 Nevada caucus-goers were from a racial minority group, which is a stronger turnout than in previous Democratic contests.

This post has been updated.

📬 Sign up for the Daily Brief

Our free, fast, and fun briefing on the global economy, delivered every weekday morning.