One of the strangest feuds of the 2016 election cycle has not been Donald Trump vs. Ted Cruz or Hillary Clinton vs. Bernie Sanders. Rather, the weirdest battle of the campaign has pitted Trump, the mercurial Republican front-runner, against Megyn Kelly, the Fox News superstar. Trump reopened hostilities when he tweeted, "Everybody should boycott the @megynkelly show. Never worth watching. Always a hit on Trump! She is sick, & the most overrated person on tv."