Cameron woos UKIP voters after candidate defects

By Andrew Osborn LONDON (Reuters) - Prime Minister David Cameron tried on Monday to heal a split on the right of British politics that threatens his re-election, urging voters defecting for the anti-EU UK Independence Party (UKIP) to "come back home". Speaking after one of his election candidates announced he was switching to UKIP ahead of a May 7 election, Cameron appealed to Conservative voters who had done the same to return to the fold. "We've heard the message loud and c