Break the rule in the sense that there has never been a president without previous political or military experience. Wendell Wilkie I think was the only nominee to fit that bill and of course he lost in a landslide.
Another bit of trivia is that Wilkie busted his butt to promote and sell war bonds and died suddenly a month before the 1944 election. He was only 52.
"Experienced" people like McLame and Grahamnesty and Mittens and Dole and McConnell and Boehner---need I go on?---have DESTROYED this country. So, yeah, I have no problem with Trump not having political or military experience.