Jeb Bush Jeb Bush

Jeb Bush speaks during a campaign rally earlier this month. Ethan Miller/Getty Images hide caption

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Ethan Miller/Getty Images

"Praise Jesus"

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Ex-Iowa State Sen. Kent Sorenson defected from Michele Bachmann's campaign before the 2012 Iowa caucuses. In a 2014 plea deal, he admitted that he lied about payments from the Ron Paul campaign. Charles Dharapak/AP hide caption

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Charles Dharapak/AP

Big Money And Backstabbing Have Become Part Of The Iowa Game

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Ohio Gov. John Kasich's supporters have spent more on TV ads than any other presidential candidate, despite a late entry into the race. New Day For America/YouTube hide caption

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New Day For America/YouTube

In Turnabout, Candidates With Less Spend More, Candidates With More Spend Less

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Donald Trump, seen sitting with his wife, Melania, at the U.S. Open Tennis Championships. He landed in controversy again after he was quoted by Rolling Stone mocking Carly Fiorina and her "face." Jason DeCrow/AP hide caption

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Jason DeCrow/AP

Donald Trump speaks to the media at the U.S.-Mexico border in July. The Libre Initiative's letter doesn't call out any candidates by name, but Trump has called for mass deportation and an end to birthright citizenship for immigrants. LM Otero/AP hide caption

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LM Otero/AP

A man carries a cardboard cutout of Hillary Clinton in Des Moines, Iowa. Clinton and other traditional candidates have struggled to breakthrough as outsiders have captured the attention this summer. Charlie Neibergall/AP hide caption

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Charlie Neibergall/AP

Trump speaks to an audience during his trip to the U.S.-Mexico border in July. He has called for a wall on the border and mass deportation. Matthew Busch/Getty Images hide caption

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Matthew Busch/Getty Images

Nativism And Economic Anxiety Fuel Trump's Populist Appeal

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Donald Trump and Jeb Bush were polite to each other at the first GOP debate. But it's been gloves off since then, especially on Instagram, a social media outlet not known for its vitriol. Andrew Harnik/AP hide caption

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Andrew Harnik/AP

Instagram: The New Political War Room?

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