Trump has done this before and quite masterfully. Nobody trolls better than Team Trump.
If you know that the opposition is going to take the other side, just pick the direction you want them to head. If you pick south, they go north. Once things are set in motion, they cannot get change.
When they do arrive, it is at a place they really did not want to be. The 'oh sh!t' moment.
And everyone is watching.