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When did Democrats and Republicans switch platforms?
Party switching in the United States - Wikipedia
Here's why Republicans are 'red' and Democrats are 'blue' - USA TODAY
More than 1 million voters switch to GOP, raising alarm for …
Democratic, Republican Parties Switched Platforms
Inside the Party Switch That Blew Up North Carolina Politics
More lawmakers are switching political parties - POLITICO
More Voters Shift to Republican Party, Closing Gap With Democrats
Eric Rauchway: When and Why Did the Parties Switch Places?
Politicians Who Switch Parties - The New York Times