The statement 'No I did not.' is a direct response to an accusation or claim made by another user. It is part of a larger conversation involving public figures and events related to public discourse, specifically concerning the removal of a heckler at a town hall meeting. The statement itself is a denial and does not provide substantive engagement with the broader public issue being discussed, such as the rights of individuals at public events or the actions of security personnel. Therefore, it does not constitute public discourse on its own.