Walmart , the world's largest retailer, will have to start raising prices later this month due to the high cost of tariffs, executives said on Thursday, in a clear signal that U.S. President Donald Trump's trade war is filtering through to the American economy.

The agreement comes as Qatar offered to donate a $400 million 747-8 jumbo jet for President Donald Trump to use as a temporary Air Force One.

President Trump is helping turn around Boeing’s fortunes after a string of safety lapses and scandals. The president’s trip to the Middle East came with a new deal for Boeing, first reported by