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How do the Iowa caucuses work?
By Carrie Dann & Mark Murray
'How do you fall for the Bernie Sanders scam?' Martin O'Malley on the Democrats and Iowa
By Martin Pengelly
Mike Bloomberg Is Making His Opponents' Supporters Mad
By Edward-Isaac Dovere
All coverage
Iowa caucuses: The latest coverage, buzz and more
By Sarah Kay & Danny Lawhon
On the Eve of the Iowa Caucuses, Bernie Sanders Emerges as the Democratic Front-Runner
By Benjamin Wallace-Wells
The Iowa caucus: Will caucuses predict the 2020 Democratic presidential nominee? For 7 of the past 9 contested elections it did
By Caitlin O'Kane
Iowa caucuses 2020: Results, vote counts show Sanders, Buttigieg tie
By Grace Panetta & Walt Hickey
Iowa caucuses fail to declare Democratic winner after major snafu with reporting results
By Kendall Karson & Meg Cunningham
John Kerry overheard discussing possible 2020 bid amid concern of 'Sanders taking down the Democratic Party'
By Allan Smith & Jonathan Allen
How do the Iowa caucuses work? A primer for the 2020 election
By Musadiq Bidar & Adam Brewster