Iowa's 4th congressional district - Wikipedia
In Iowa, support for Israel transcends the drama of national politics | Ctech
Iowa lawmaker cites disapproval with Donald Trump as reason he's leaving Republican Party
Registering By Party: Where the Democrats and Republicans Are Ahead – Sabato's Crystal Ball
PRRI
New Iowa Democratic Party chair Rita Hart has her work cut out for her - Iowa Capital Dispatch
Solved Party Affiliation The following data represent | Chegg.com
Part 1: Party Affiliation | Pew Research Center
Red States Outnumber Blue for First Time in Gallup Tracking
PRRI
Iowa - APIAVote
Registering By Party: Where the Democrats and Republicans Are Ahead – Sabato's Crystal Ball
More than 1 million voters switch to GOP, raising alarm for Democrats | PBS NewsHour
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Voter registration numbers illustrate Iowa politics
Are Iowa's Democratic Days Gone for Good? - The Atlantic
What to know about the Iowa caucuses | Pew Research Center
What Painted Us So Indelibly Red and Blue?
Donald Trump changed political parties at least five times: report - Washington Times
Republican Party of Iowa - Ballotpedia
Voter Registration Data for the 2016 Iowa Caucus
ALARM Project: Iowa Congressional Districts
Part 1: Party Affiliation | Pew Research Center
GOP Maintains Edge in State Party Affiliation in 2016
All or Nothing: How State Politics Became a Winner-Take-All World
In the Midwest, Dem Districts are Marching to the Suburbs – Third Way
