If Romney had been in during the Sandy Hook aftermath, Republicans would have fallen all over themselves to ban semi-automatic rifles and their peripherals behind him. IMO, it’s the ONE serendipitous thing positive that came out of the current douchebag-in-chief, it gave the “opposition” something to rally behind. (and I voted for Romney myself)
We don’t need to guess what Romney would do. He signed an assault rifle ban in 2004. Believe what is right in front of you. He also signed Obamacare for Massachusetts.
He was also for open borders, homo marriage, abortion, and believes in Global warming. But other than that he’s really VERY conservative. He would have waved the flag and looked very middle America circa 1965, as he implemented Obama’s agenda.