Yes, Spicer's pretty bright, but my sense is he's actually in possession of a certain amount of integrity that won't abide his being fed false information by the likes of Trump's cronies such as Bannon, only to be mortified when his statements are proven false, or tiresome when he has to defend them as "just what Trump believes."
Mark my words: Spicer won't last a year.
As for Trump's rally crowd attendance, truly, what did anyone expect? He's a reality TV star and one who loves to trample and trounce on and utterly destroy other human beings, and isn't that exactly the type of mean and nasty fodder the great unwashed love to revel in, in this day and age? Just look at the most popular TV shows. Anger and discord and divisiveness and even violent hatred are what it's all about. Squash your opponent like a bug. Cream his ass in a NASCAR race.
Golf, on the other hand, is waaaay too sportsmanlike and gentlemanly (if you'll forgive the old sexist adjective, used for convenience's sake), which is one of the reasons it's slowly dying as a spectator sport.
Oh yes, the campaign rally crowds ate up what Trump was dishing out, and now they can't wait to see what he'll do for his next act, and his next. And the rest of us are purely mortified to see what has become of so much of this country.
If middle America wants the Roman coliseum, complete with lions, Trump's perfectly happy to oblige, in the true small man bully spirit.