Then, and this part will be easy for the president, the greatness of America has to be spelled out and defended. We are not, nor have we ever been perfect. The preamble to the Constitution reads the government was established “in order to form a more perfect union,” not a perfect one. Human beings are incapable of perfection. But that doesn’t mean we should ever stop striving for it, and we have not. President Trump needs to make that case.