Of course he may. Donald Trump doesn’t believe anything he says, he is just “negotiating”.
But his disciples may be shocked and dismayed, because they do believe what he says.
That’s what he’s doing.
Anything he says in public is for effect.
This is business. We are all dealing with an ace salesman doing his thing.
On the other hand, the regular politicians have been doing the same, while pretending they haven’t.
Neither are honest, but Trump doesn’t hide his nature.
We have one liar who admits he is, and several others who won’t admit it. Who is more honest ? That’s can interesting philosophical question.