Amazon is not the first business to end up in the president’s crosshairs.
Donald Trump has targeted well over a dozen companies on Twitter since he was elected president. Of course, Trump has had plenty of harsh words for a lot of media companies whose coverage he disagrees with — they make up nearly half the list.

A spate of negative tweets from Trump about Amazon (AMZN) cost the company billions of dollars in market cap as investors sold off stock. In total, the companies criticized by Trump employ more than 1.75 million people, and are collectively worth hundreds of billions of dollars.
Trump is not the first president to lash out at companies. President Kennedy once attacked steel companies for raising prices, and President Nixon secretly went after news outlets that he thought made him look bad.

Unlike Kennedy’s attack, Trump’s comments don’t “seem to be about policy,” said CNN contributor Julian Zelizer, a professor of history and public affairs at Princeton University.
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