A broadcast of President Donald Trump’s address to a joint session of Congress on March 4, 2025. (Damon Winter/The New York Times) By JAMELLE BOUIE Can President Donald Trump distinguish truth from fiction? Does he know what is real and what is the product of a computer program? One wants to believe that the president of the United States, cloaked in immense power, would understand the difference between reality and fantasy. One would hope, given the terrible stakes of his decision-making,…