A good summary of the top presidential candidates’ reactions to the caucuses in Iowa, from Ryan Cooper in The Week:
People's character tends to reveal itself in times of stress, which the bungled Iowa caucuses at least provided in spades. We see today Buttigieg the ruthless and opportunistic political climber, Biden the incompetent and panicky bungler, Sanders the patient movement-builder, and Warren the steady and dogged campaigner. Future primary voters should take these revelations into account when making their choice.