Sterling slips as investors await Brexit showdown

LONDON (Reuters) - The pound retreated on Friday morning, as relief that a Brexit deal had been agreed was replaced by doubts the proposed deal will get through the British parliament in Saturday's vote.The pound held at five-month highs of $1.2874 against the dollar, down from Thursday's peak of $1.2988. It was little changed against the euro, at 86.28 pence.News of the Brexit deal sent the pound soaring on Thursday. But sterling erased the gains before UK Prime Minister Boris Johnson's next..