I have a college student graduating this spring. I certainly hope Barry doesn’t plan to pull this crap with other college commencements. Anywhere Barry goes must create a nightmare of security for the innocent folks who want or need to be in that place when he is there also.
My recollection is that standard procedure is for the president to give three commencement addresses per year, typically one at a military academy, one at a public university, and one at a private college or university. There have been exceptions but that's the usual routine.
At least that's the way it was explained when President George W. Bush spoke at the college from which I graduated long ago, and generated a huge firestorm of protests by current professors and students. I was disgusted with the conduct of current people at my “alma mater” — there were major problems decades ago and they've only gotten worse — and I played a small role in helping some conservatives in the national media find background about the college for articles on the incident.