Donald Trump is emerging as the clear favourite to retake the White House after surviving a botched assassination attempt in Pennsylvania, a leading bookmaker has revealed. Trump, 78, was still the favourite with British-based betting company William Hill ahead of his rally in Butler yesterday. The 45th President’s odds stood at 8/15, giving him a 65.2 per cent chance of winning on November 5. Trump’s odds were slashed to just 4/11, representing a 73.3 per cent chance of victory for the ex-President. Victory would make Trump just the second Commander-in-Chief to serve two non-consecutive terms…