evidence: In another tweet on Tuesday, Trump again claimed the postal service is losing "massive amounts of money." [...] TRUMP: ‘‘Only fools, or worse, are saying that our money losing Post Office makes money with Amazon. THEY LOSE A FORTUNE, and this will be changed. Also, our fully tax paying retailers are closing stores all over the country...not a level playing field!’’ — tweet Monday. [...] As for the post office, package delivery has been a bright spot for a service that’s lost money for 11 straight years. The losses are mostly due to pension and health care costs — not the business deal for the Postal Service to deliver packages for Amazon. Boosted by e-commerce, the Postal Service has enjoyed double-digit increases in revenue from delivering packages, but that hasn’t been enough to offset declines in first-class letters and marketing mail, which together make up more than two-thirds of postal revenue.