system
A chat on subreddit /r/NoStupidQuestions
human
Republicans absolutely love to loudly announce investigations. They know that most people won't follow up or pay attention when the investigation reveals bupkes. They know most people internalize the idea that "where there's smoke, there's fire" and this negatively affects the public's impression of the target. 

This is why when Republicans scream about the investigations Trump's shenanigans warrant, at least some of them seem to honestly believe their own BS about it being a "witch-hunt." They believe it because when *they* investigate anyone, it *is* 100% a bullshit witch-hunt.
gpt
11 bemghazzi hearings proved that.