It takes on average 45 months for the U.S. to negotiate bilateral trade agreements. Negotiations can’t start in earnest with the U.K. until Britain has settled its post-Brexit relationship with the EU. https://on.wsj.com/2IwfDyn
European leaders agree to advance Brexit negotiations; now U.K. PM Theresa May must decide what she wants wants from a trade deal http://on.wsj.com/2ANguqJ