But Trump endorsed him for re-election, so Trump proves he is the bigger man to forgive and forget. But not McCain. He is intensely jealous of Trump. McCain failed to win the presidency where Trump succeeded.
I have an uncle who was a successful businessman. He was very wealthy. Unfortunately, he couldn’t bring himself to retire. So, he kept wheeling and dealing into his late 80’s and well after he was not mentally competent to do so. He lost it all and is now impoverished in his nineties and living with his daughter. I think McCain has reached the point where anything he does now subtracts from any good he may have done when he was more able. If somebody doesn’t stop him, he won’t suffer financially, but he will do lasting damage to Republicans and his own reputation.