Yes, it most certainly does have to be true.
I posit there IS a principle at play and it’s what it says on the surface: make America great.
That is not a principle. It is a slogan.
Like unto 'worry about the work, and the money will come', if one worries about the principles things, then the greatness will come. "If my people, who are called by my name..."
Trump has already begun to grasp that specific progressive policies are poison to that. If this keeps up, it will MAY dawn on him that progressivism itself as he has learned it is poison to that.
We have neither the time, nor the surety of that for which you might hope. Better to find one whose principles are inbuilt and on the record... In that we find surety.
Oh? You are the Truth (and toss in, the Way, the Life)?
The way God handles truth is by universally revealing it. It isn’t blessed as “what roamer_1 believes from the bottom of his heart.”
The only inbuilt principles are in God. All else can be abandoned given enough of an incentive.
There are several signs of the divine hand in the Trump situation.