In a show of confidence, Sanders left Nevada early to rally supporters in Texas, which offers one of the biggest delegate troves in just 10 days on Super Tuesday. The victory, while encouraging for Sanders supporters, only deepens concern among establishment-minded Democratic leaders who fear that the self-described democratic socialist is too extreme to defeat Trump. Trump weighed in on social media, continuing his weeks-long push to sow discord between Sanders and his Democratic rivals. Unlike state primaries and the November election, which are run by government officials, caucuses are overseen by state parties. Only Biden, Buttigieg and Steyer were still in the state when news of Sanders’ victory was announced.