The latest polls show Trumps support fading a bit. This study is based on the early primaries where he had strong support that may not hold.
It seems the more people get to know him. The more they dislike him.
Trump is being attacked every day by the media, the Republican establishment and the Super PACs that are spending hundreds of millions on attack ads. Any other candidate who had to endure this would be destroyed but Trump is just “fading a bit”.