Charles Krauhthammer. I disagreed with almost every opinion he had, but respected his intellect and writing. Sometimes you need to listen to those you disagree with.
He will be missed. If only we had more people like Charles on both sides of the aisle who could discuss political matters civilly and from a position of well reasoned ideology, we would be much better off. Political discourse has gone off the cliff, and is the main reason I don't get into political discussions on social media and am careful with discussions in public.