Why it matters: A source told Axios' Jonathan Swan that the "whole post office thing" has been "explained to [Trump] in multiple meetings that his perception is inaccurate and that the post office actually makes a ton of money from Amazon." Amazon pays the same bulk rate as other shippers, and USPS is legally required to avoid shipping at a loss.
P.S. ... Newspapers are not required to register as lobbyists. But Trump has singled out the Post for being owned by Amazon owner Jeff Bezos. Back in July, the president called WaPo a "lobbyist weapon" for Amazon.