He’s acknowledged he didn’t go about it the same way he did in the past. He didn’t employ the statistical analysis that gave him a perfect run in 2012 and hit all but one in ‘08. Say what you will, but those weren’t luck or insider data.
Again, statistical analysis is fine when you have the right data, problem when you try to apply them to politics is past is not prologue. When things shift in a major way the data that was relevant in the past is irrelevant now and your results don’t match reality.
He can try to claim he’s got the secret sauce but he’ll be sucking eggs in November.