... you are going to see these tariffs in place for some period of months. Clete Willems former deputy director at the National Economic Council

"At the end of the day, what they'd like to do is use these tariffs for leverage to get a negotiated outcome," he said. "But I do think that the two sides haven't worked together particularly well when it comes to trade negotiations lately and it may take some time for them to work through these issues ... so you are going to see these tariffs in place for some period of months." The WTO outcome on Wednesday came after years of wrangling over subsidies that aircraft maker Airbus received from several European governments. The U.S. first lodged the complaints in 2004. In response to the WTO ruling, the EU suggested it would retaliate against U.S. tariffs.