He’s got it in him. Whether or not he would use it was the question. He had no problem using it during the primaries. I wasn’t a big fan but he was brutal, and could take big hits.
I don't like him, never have and likely never will, and I'm still not decided to vote for him (but, as I live in Maryland, if my vote mattered in a national race, it's already a GOP landslide anyway), but I have never doubted his ability as a politician.