My guess when he has a heckler in his audience they will be escorted directly out. Reason they will give. The heckler(s) could be a potential threat to his security. Being president that would be the option of his security force.

I see quite a few out of line hecklers jabbing at the candidates in Iowa. Ask your question and wait for an answer if the question deserves it.

They look more like plants to me. Rantin and ravin about their gripe.