Iowa Democrats: Buttigieg edges Sanders for delegates
By Holly Otterbein & Zach Montellaro
Nevada Democrats debut to volunteers new iPad-based 'tool' to calculate math on Caucus Day in the wake of Iowa fiasco
By Megan Messerly
How Bernie Sanders won the Democratic debate
By Matthew Yglesias
Why the Turnout in Iowa Has Some Democrats Worried (Published 2020)
By Lisa Lerer & Astead Herndon