If you're trying to write a story that "ends with the words: How wrong he was" you may want to make the story about some kind of stance you make that he disagrees with. You could choose any topic that usually creates tension between people, such as politics or the environment.
Several people didn't agree with what trump has said and done. He's homophobic, racist, and against womens rights. He's let officers take black people's lives, tried to enforce stop and frisk, which is basically taking any black person off of the street and tossing them into jail, and hasn't taken the virus seriously. He's also calling global warming an expensive little hoax, which is completely wrong and upsetting. Biden, however, is in favor of LGBTQ+ rights, womens rights, and supports black men and women. He's letting a black, female woman to be his vice president, which is a massive step, as she's the first one.
Answer:
"Grand, there's a word I really hate. It's a phony. I could throw up everytime I hear it." ~ Holden Caulfield
Explanation:
