In a morning tweet, President Trump reacted to yesterday's report from Axios' Jonathan Swan that he is "obsessed" with Amazon's effects on American retail, which caused Amazon's stock price to lose billions in value during yesterday's trading. Trump also claimed that the U.S. Postal Service is Amazon's "Delivery Boy," even though a source told Axios yesterday, “It's been explained to him in multiple meetings that his perception is inaccurate and that the post office actually makes a ton of money from Amazon."

Go deeper: Trump hates Amazon, not Facebook.