Bill de Blasio Won't Declare Hillary Clinton the Victor in Iowa

Clinton Claims Victory Over Sanders

News outlets said race too close to call

Maddow: Tonight 'Is Such a Big Victory' for Bernie Sanders

Values Voters Deliver Iowa for Ted Cruz

And the Republican coalition endures

Maddow: Clinton and Sanders in Virtual Tie in Iowa Is 'Stunning Result'

Ted Cruz Wins Iowa

Trump in second and Rubio in third, running neck and neck

Iowa Caucus-Goer Vents About 'F---ed Up' VA Live on MSNBC

O'Donnell Hits McCaskill's Reasons for Endorsing Clinton

The White House Won't Comment on Investigations Unless They're About Hillary Clinton

Iowans Chat About Sanders on Facebook 3 Times More Than Clinton