Sealing off the BrexitTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoJanelle Dumalaon02/19/2016February 19, 2016David Cameron is determined to win the battle over his country's EU membership. But the UKs prime minister is coming up against EU leaders' resistance to concessions to keep his country in the bloc.https://p.dw.com/p/1HyQIAdvertisement