How you can tell that Donald Trump was never actually asked the question about a NATO country being attacked by Russia

At a presidential primary election campaign rally in South Carolina on Saturday, 10 February 2024, former United States President Donald Trump told a story about a question supposedly asked at a speech he supposedly gave about NATO: "One of the presidents of a big country stood up and said, 'Well, sir, if we don't pay and we're attacked by Russia, will you protect us?'" But I can tell that he was never asked that question. After all, it may have been asked by "one of the presidents of a big country", but if it had happened, then that president would have been a "big man with tears streaming down his face." (Andrew Shields, #111Words, 12 February 2024)