If it hasn’t happened to you before, it will—especially if you post a blog that identifies you as a libtard. I am certainly one, and proud of it. A few days ago, I wrote a post about my dislike of what the Second Amendment has come to mean. If you say something negative about guns, you will inevitably draw a response from a troll.
Now it is a well-known fact that it is not worth disputing with a troll. If the troll posts a comment, it will not be to obtain information or evaluate your post: It will aim at “pwning” you, by making you look like a fool. The goal of the comment is for the troll to “win” and for the blogger to “lose.”
What I usually do is, as soon as I detect a troll-like tone, is to hit the troll with a preemptive burst of snark right off the bat. Before he could bring his guns to bear, either hit him again or casually deprive him of the right to post on your blog site.
This is not a debating society. When I write about politically sensitive issues, I have no interest in engaging with the opposition in a dispute. All these disputes come across as dreary exercises that are not worth engaging in. So have no compulsion about blowing off the troll. You have no obligation to defend yourself against nugatory attacks.