OK.
Think about it.
Why would they want to shut down a campaign event?
“So that our candidate will win the nomination.”
They don’t have a candidate in the Republican nomination process.
So why were they there?
It wasn’t to show support for their candidate.
So why were they there?
Because the GOPe, or more likely a surrogate, promised them a handsome payment if they showed and did what they did.
The GOPe is butt ugly. Not very smart either.