Brexit trade challenge in focus as MPs vote again for leader

By Kylie MacLellan, William James and Elizabeth Piper LONDON (Reuters) - Britain will have to ask "friendly governments" to provide some of the trade negotiators it lacks as it starts the process of extricating itself from the European Union, Foreign Secretary Philip Hammond said on Thursday. The acknowledgement underlined the extent to which the government was wrongfooted by last month's referendum to sever ties with the EU, a process fraught with uncertainty for businesses and investors. Hammo