‘I am right’: Trump insists Amazon hurts the Post Office but fails to offer any proof in latest Twitter rant
Donald Trump/Screenshot

Donald Trump is not backing away from his lie about Amazon costing the postal service money.

"I am right about Amazon costing the United States Post Office massive amounts of money for being their Delivery Boy," he tweeted Tuesday morning. "Amazon should pay these costs (plus) and not have them bourne by the American Taxpayer. Many billions of dollars. P.O. leaders don’t have a clue (or do they?)!"

According to Politifact, Amazon actually helps the postal service stay afloat by helping its bottom line on package delivery. In 2017, packages the USPS $19.5 billion, the site reports, which is or 28 percent of the total annual revenue. That was the largest increase.

The real problem the USPS faces is pensions for retired workers, which are increasing quickly as Baby Boomers retire.