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Editor’s Note: This story is the fifth and final in a series that looks at how and why Iowa voters moved away from Democrats and lined up behind President Donald Trump and other Republicans.

It’s no surprise that Iowa has experienced a significant political shift in the last 12 years.

Since 2012, Iowa has seen a nearly 19-percentage-point swing toward Republicans, according to voting data from the last four presidential elections.

In 2012, former President Barack Obama won the state by nearly 6 points. Half of Iowa’s Congressional delegation was made up of Democrats and control of the Iowa Legislature was split between the two parties. Iowa went to Democrats in four out of the five president

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