After Brexit vote delay, leadership challenge looms for May

LONDON/BERLIN (Reuters) - An attempt to oust British Prime Minister Theresa May gathered pace on Tuesday, a day after her decision to delay a vote in parliament on her Brexit deal for fear of a rout angered many in her Conservative Party.With May on a tour of European capitals to try to secure "reassurances" to calm the crisis at home, the BBC and other media cited sources as saying the required number of letters from Conservative lawmakers calling for a no-confidence vote in her leadership of t