Wingnut
/ˈwɪŋˌnʌt/
"Wingnut" in a Sentence (2 examples)
Near-synonyms: nut, nut job, nut case, crank, weirdo; see also Thesaurus:strange person, Thesaurus:mad person
On November 21, evangelist Franklin Graham (son of the late Rev. Billy Graham and a strident Trump supporter) discussed impeachment when he appeared on fellow wingnut Eric Metaxas’ radio show.