British Prime Minister Keir Starmer refused on Monday to heed calls to quit, even by the leader of his party in Scotland, after a second aide resigned from a team in crisis over the appointment of Peter Mandelson as ambassador to Washington. Under pressure over the appointment of a man whose close ties to the late US sex offender Jeffrey Epstein have come into full focus, Starmer has attempted to change the narrative. But a demand from Anas Sarwar, leader of the Scottish Labour Party, for him...