The main purpose of article is to show potential of Internet deliberation as a form of public dialogue on example of social media discussions' analysis. Online discussions on theme of the second impeachment of D. Trump on Facebook was analyzed accordingly to such parameters as distribution of positions, interactivity. Moreover, new parameters are highlighted and described - degrees of dialogue and discussion which allow to see in what percentage a communication is conducted in the forms of dialogue and discussion. Also, an approach how to identify degrees of dialogue and discussion is revealed and explained.