Was Trump scheduling the G-7 at his resort a clever diversionary tactic?

It occurred to me that once again Trump changed the narrative. Mulvaney revealed the truth that the Ukraine aid was being deliberately withheld (and then backtracked.) Trump comes out with his G-7 host announcement which dominates the news cycle and distracts from the Mulvaney bombshell. Then he withdraws it as he perhaps knew he would have to.

Is it possible that Trump is more clever than many of us give him credit? P.S. I was just watching a documentary about his mentor and friend, Roy Cohn, one of the sleaziest and most brilliant power brokers in U.S. history.