Johnson has thrown US ambassador under the bus, say top Tories
By Peter Walker, Patrick Wintour & Rajeev Syal
British ambassador to U.S. resigns after Trump criticism
By Josh Dawsey, William Booth & Karla Adam
Kim Darroch, UK ambassador to US, resigns after Trump cables leak
By Bianca Britton & Max Foster
Trump lashes out at 'foolish' May as crisis over ambassador grows
By Rowena Mason, Patrick Wintour & Sabrina Siddiqui