The Doha Round of trade negotiations has been stalled for some time, primarily due to the U.S. and E.U.'s reluctance to address their trading practices. The Financial Times posted an article showcasing
India pressuring the two economic powers. Recently the U.S. and E.U. have been attempting to hash out a deal between themselves addressing the matters of subsidies and import tariffs, but have been unable to come to an agreement. In the meantime, Doha will remain unfinished business.
Increasing international pressures are being placed on the U.S. to scale back its agricultural subsidies, but continues to disregard the requests. Domestically, it would be political suicide for any politician to succumb to these pressures, making it extremely difficult for anyone to even consider such a move.
Although I am terrible at predictions, I would venture a guess that until another economic power rises up to rival the U.S. and E.U. (and a rival is not, in my opinion, on the immediate radar) both will continue to be stubborn.