Democratic presidential candidates, Sen. Bernie Sanders (left), Sen. Amy Klobuchar and businessman Tom Steyer raise their hands during a Democratic presidential primary debate on Friday at Saint Anselm College in Manchester, N.H.

Democratic presidential candidates, Sen. Bernie Sanders (left), Sen. Amy Klobuchar and businessman Tom Steyer raise their hands during a Democratic presidential primary debate on Friday at Saint Anselm College in Manchester, N.H.