business to a struggling enterprise. >> mail volume has gone down more than 25% over the last decade and amazon and other companies are bringing parcels into a system that's desperately in need of revenue. >> under cutting another claim made by the president, amazon collects sales tax in all 45 states that require it but third party sellers on the site act inde independently. the president's real ire is aimed at jeff bazos that owns "the washington post." >> or "the washington post", which i call a lobbying tool for amazon. that's a lobbying tool for amazon. expelling each other's diplomats, the presidents' day is taking off from washington.