A moderate is not calling anybody extreme names. A moderate is not supporting racism or socialism. A moderate is looking at all sides of an issue and then making up his mind. A moderate does not wear a MAGA hat or a Trump is evil hat. In other words a moderate does not sell, so he is not portrayed in the media. A moderate can feel that Hillary is a consumate con woman or that Trump is a narcissistic blow hard and vote accordingly. Moderates make the news but by what they do and who they vote for, not in and about themselves.
People in the United States that are truly politically engaged have all deteriorated to the classification or philosophy of "If you are not for me you are against me. If you disagree with me you are evil." Politicians and public figures are defined by the media and others, not by their true and genuine actions.
Simply stated, as a significant entity or political force moderates no longer exist.