The Wilder effect has not existed since, well since Wilder. Obama generally did better in elections than in polls.
If you think the MSM has done a job on Carson, just wait and see what they do to Trump if he wins the nomination. He probably has more real baggage than any Republican nominee in history and would get crushed.
Hmm....I don’t know your age, but those of us who have been around a while know all there is to know about Donald Trump, whose escapades were tabloid fodder for decades .....