During the referendum campaign, British Prime Minister David Cameron promised that he would give the required notice immediately in the event of a "leave" victory. After the vote, however, Cameron announced that he would resign in October and turn the decision to notify the European Union over to his successor, who will likely be a member of the "leave" camp. Cameron probably made the decision with the idea that the political and economic situation in the United Kingdom would be so complex by October that his successor might choose to ignore the results of the nonbinding referendum. After all, early reactions to the referendum — including drops in the pound sterling and on the stock exchange, Scottish threats to leave the United Kingdom and a cold response from EU leaders — foretell difficult months ahead for the United Kingdom.