It certainly generated a great deal of news coverage. I wonder if the guy with the ram’s horn was part of the anti-rally protest. I read that a small group of atheists were outside of the stadium carrying on for a while.
I doubt that the guy with the ram’s horn was a protester. He smiled and waved at the crowd and seemed a pleasant type of person.
He had too much energy to be a protester.
I am assuming it was a Shofar, calling people to prayer and repentance..but what do I know?