During the time that Nixon was president and his penchant for dirty play was coming out, people would say to me, "We need a president who is honest. We need a nice president." So we got one - Jimmy Carter. So much for nice presidents.
Which leads me to believe that we don't really need a nice president. We need a mean, nasty sonuvabitch who can stand toe to toe with Putin and tell him to stick it where the sun don't shine. We need somebody who is grouchy, touchy, who believes that the United States is the best thing since (and before) sliced bread and anyone who messes with us will be chewed up, spat out, and forgotten.
We need someone who understands that war is not civilized. Therefore, this person would not enter into a war unless there was no other choice, but once in the war would have two goals: not getting our people killed, and getting their people killed. As Patton said, you don't win a war by dying for your country. You win by making them die for their country. As long as the US fights tippytoe wars, we'll lose soldiers.
So, where does that leave us? Should we have invaded Iraq? Probably not. Should we stay? Until we have kicked some serious a##.
Which presidential candidate is more likely to think this way? Need I say?