Pound jumps after Sajid Javid resigns

LONDON (Reuters) - The pound extended gains on Thursday after the resignation of British finance minister Sajid Javid, as investors bet that his replacement would pave the way for a more expansionary budget next month. Javid turned down the role of finance minister in Prime Minister Boris Johnson's new cabinet as he was asked to replace all his advisers, according to a source close to Javid. He will be replaced by Rishi Sunak, previously second in command to the finance minister overseeing..