FILE PHOTO: The logo of Amazon is pictured inside the company's office in Bengaluru Thomson Reuters WASHINGTON (Reuters) - President Donald Trump has personally pushed the postmaster general to double the rates the U.S. Postal Service charges Amazon.com and other companies to ship packages, the Washington Post reported on Friday, citing three unnamed sources.

Postmaster General Megan Brennan resisted Trump's suggestion in private conversations in 2017 and 2018, telling him that package delivery rates are set by contract and reviewed by an independent commission, and that the arrangements have helped the financially challenged Postal Service, the sources told the newspaper. Trump has claimed without evidence that deliveries for Amazon were costing the service money.

The White House did not immediately respond to a request for comment and a spokesperson for the Postal Service could not be immediately reached.

(Reporting by Eric Walsh; Editing by Tim Ahmann)