President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE insisted on Friday that the U.S. Postal Service should be charging online retailers, like Amazon, more to deliver packages, saying the service's cheap delivery rates were making it "dumber and poorer."

"Why is the United States Post Office, which is losing many billions of dollars a year, while charging Amazon and others so little to deliver their packages, making Amazon richer and the Post Office dumber and poorer? Should be charging MUCH MORE!" he tweeted.

Why is the United States Post Office, which is losing many billions of dollars a year, while charging Amazon and others so little to deliver their packages, making Amazon richer and the Post Office dumber and poorer? Should be charging MUCH MORE! — Donald J. Trump (@realDonaldTrump) December 29, 2017

Trump’s tweet came after “Fox and Friends” aired a segment about technology trends expected in 2018. Among them was Amazon’s bet on augmented reality, which would reportedly allow online shoppers to see how products would look in their homes before making a purchase.

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Trump is known take to Twitter to comment on the news in real time, and Fox News is reportedly his network of choice.

Trump has repeatedly clashed with Jeff Bezos, the billionaire founder of Amazon, in the past, and has criticized Bezos’s ownership of The Washington Post, which he often derides as “fake news.”

- This report was updated at 8:42 a.m.