"So are you giving him credit for carrying out his cynical plan even though he made a lame joke and laughed at the man he invited to speak? A lot of people might think the Pres was rude to interrupt. Most would think he was rude to laugh at the man."

As I said in my previous comment, I gave Bush credit for quieting the audience down and letting Taylor finish. Taylor could have been drowned out in a sea of boos.   You may characterize it as Bush having laughed at the man, but what I saw was an uncomfortable president trying to make light of the situation and he still allowed Taylor to speak his piece.

We also have no proof that it was a "cynical plan". I know they usually choreograph these events, so I would not be surprised.

"exactly what was apparent and how it was apparent?"
Do a search and read some of the news stories. He was chosen because he is a member of the Charlotte World Affairs Council, which is a non-profit, non-partisan organization. The folk connection did not enter in to it.