UK's Johnson baulks at Brexit cost as leadership race hots up

LONDON/PARIS (Reuters) - Boris Johnson, the favorite to succeed Theresa May as Britain's prime minister, said on Sunday he would withhold payment of the country's European Union exit bill to try and get a better deal - a move that drew an immediate rebuke from France.Johnson is one of 11 lawmakers vying to run the world's fifth largest economy after May resigned as leader of the governing Conservatives on Friday, having failed to unite parliament or the country behind her Brexit plan.Britain is