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JOHN KASICH'S EATING HABITS
When you're competing against Donald Trump, not even your eating habits are off limits. Trump recently took time at a Rhode Island rally to criticize the way Kasich eats. Yes, you read that correctly. "He has the news conference all the time when he's eating. I have never seen a human being eat in such a disgusting fashion," he said. "This guy takes a pancake, and he's shoving it in his mouth. It's disgusting! Do you want that for your president? I don't think so." Apparently pancake-eating technique its up there with economic policy in terms of importance in a presidential candidate.
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DONALD TRUMP'S HANDS
Many would argue there's plenty an opponent could find to criticize about now-presumptive Republican nominee Donald Trump. But of all those things, Marco Rubio decided to make Trump's hands the focus of his insults. During a rally in Virginia, Rubio said that Trump had small hands for a man of his height. "And you know what they say about guys with small hands," he said with a pause. "You can't trust 'em!" Sexual joke-charged campaign insults. Yes, it's come to that.
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JOHN MCCAIN'S WAR RECORD
Unlike another recent Republican nominee for president (cough, Mitt Romney, cough), John McCain has primarily kept quiet during the 2016 presidential race. That is, until Donald Trump brought him back to the spotlight. Trump spoke poorly of McCain's war record (he was famously a prisoner of war in Vietnam). "He's not a war hero," he said. “He was a war hero because he was captured. I like people who weren't captured." Ironic, because during the 2008 election, McCain's time as a P.o.W. and his sacrifice for the country was one of the few things that both parties could agree on.
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THE ENTIRE MEXICAN IMMIGRANT POPULATION OF THE U.S.
One of the most hot-button issues throughout this election has been illegal immigration. And for Trump, it's been at the forefront of his campaign from the get-go, which was clear from his campaign launch last summer. "When Mexico sends its people, they're not sending their best," he said. "They're sending people that have lots of problems, and they're bringing those problems with us. They're bringing drugs. They're bringing crime. They're rapists. And some, I assume, are good people."
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TED CRUZ'S WIFE
The claws really came out when Trump and Cruz went to bat over their wives. First, an anti-Trump ad showed Melania Trump nearly naked in an image from British GQ. Then, Trump tweeted that he would "spill the beans" on Cruz's wife, Heidi, becuase of it. After that, he tweeted an unflattering photo of Heidi split with a photo of Melania that read "No need to 'spill the beans,' the images are worth a thousand words." Cruz then told Trump to leave Heidi "the hell alone." Yikes.
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MEGYN KELLY, IN GENERAL
One of the first spats of the 2016 election came back in 2015, after the first Republican debate, hosted by Fox News and moderated by Megyn Kelly. After her tough line of questioning for the Donald, he hit back hard the next day. On Twitter, he said he liked her show, The Kelly File, better without her, and retweeted a tweet calling her a bimbo. Later on, in an interview with CNN, he made a comment that caught headlines everywhere. "She gets out and she starts asking me all sorts of ridiculous questions," he said. "You could see there was blood coming out of her eyes, blood coming out of her wherever. In my opinion, she was off base."
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HILLARY CLINTON'S GENDER
After the Acela Primary day in April, where Donald Trump's path to victory became even clearer than ever before, he began to turn his attention from his fellow Republicans to Democratic frontrunner, Hillary Clinton. He said that she was playing the "woman card" in the election, although women "don't actually like her."
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A REPORTER'S DISABILITY
During a campaign rally in South Carolina, Trump allegedly mocked New York Times reporter Serge Kovaleski who has the congenital joint condition arthrogryposis, which limits his use of his arms. At the rally, Trump seemed to be making fun of Kovaleski, saying: "Now, the poor guy — you've got to see this guy, 'Ah, I don't know what I said! I don't remember!' while he jerked his arms in front of his body. Trump later claimed that he didn't know who Kovaleski was and that he was not mocking him.
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TED CRUZ'S ENTIRE BEING
Though he wasn't at first, Cruz eventually became the "establishment candidate" for the Republican party. But he didn't have the support of former Speaker of the House John Boehner, who reportedly called him "Lucifer in the flesh" and a "miserable son of a bitch." Tell us how you really feel!