The "Strawman" logical fallacy is misrepresenting someone’s argument to make it easier to attack.
By exaggerating, misrepresenting, or just completely fabricating someone's argument, it's much easier to present your own position as being reasonable, but this kind of dishonesty serves to undermine honest rational debate.
Example: After Will said that we should put more money into health and education, Warren responded by saying that he was surprised that Will hates our country so much that he wants to leave it defenseless by cutting military spending.
Example: After football players knelt during the national anthem to protest racial injustice, conservatives responded by saying that they were appalled that football players would disrespect the flag, people in the armed services and veterans. After all, it is easier to beat up on the people kneeling when it is about disrespecting symbols of our country than it is when it is about social injustice.