President Donald Trump opened his remarks alongside NATO Secretary-General Mark Rutte in the Oval Office on Monday by threatening "severe tariffs" against Russia. "We're very, very unhappy with them," Trump said of Russia. "And we're going to be doing very severe tariffs if we don't have a deal in 50 days."

The EU says the U.S. is resisting efforts to strike a trade deal and warned of countermeasures if no agreement is reached with U.S. by Aug. 1.