Trump is an adept politician with an innate sense of what will sell. A sense is finely tuned to a portion of the population many of us have not much in-common with so it's easy to miss how he is appealing.
I just listened to a rambling word salad from him on abortion. And yet he managed to give an answer that would be acceptable to both the radical pro-life, people who don't care about abortion and people who think it should be legal "in some cases" 1/