Bernie Sanders takes early lead in Nevada caucuses with support from young liberals

Senator Bernie Sanders jumped out to an early lead at Saturday's Nevada caucuses - the first 2020 contest in a diverse state. Early entrance polls showed Sanders drawing much of his support from young, liberal Democrats. The rest of the field trails by a significant amount. Coming into Nevada, Pete Buttigieg has won the most national delegates, with Sanders close behind. Nikole Killion reports.