[unishark]

I suspect you're talking about individuals while the TS is talking about the press. Press outlets will certainly make bad faith arguments to get ratings. For example by twisting someone's words into the most outrage-provoking interpretation possible. Even if they personally feel that the politician probably just misspoke or meant something benign or whatever.

As for private individuals, like posters arguing on the internet, yes they probably tend to believe what they say in the moment. A big problem there, perhaps ironically, is people assuming bad faith about each other.