The specter of mental illness does indeed loom large over creationists, but they are not alone. Signs of psychopathology can also be seen among their political bedfellows, conservative politicians, especially when you consider a wide range of illness indicators.
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1) Denial: humans did not evolve; Obama is not a native-born American Christian
2) Delusion: climate is not changing
3) Hallucination: God ordained me to be President
4) Disordered Thinking: being for small government that's huge in the bedroom; being anti-contraception and anti-abortion
5) Anger: Newt Gingrich’s perpetual scowl
6) Anti-social Behavior: toward women, gays, minorities, anyone without an umbilical cord or trust fund
7) Sexual Preoccupation: a fervent compulsion to control when we can mate, with whom we can mate, and precisely how we are allowed to mate.
8) Grandiosity: even Rick Santorum recognizes Gingrich’s “over the moon” grandiosity
9) General Oddness: Ron Paul
10) Paranoia: pretty much all of them, all of the time
Even (the not necessarily dumb) Pope Francis appears to that “it is a serious illness, this of ideological [conservative] Christians. It is an illness, but it is not new, eh?”
This thread I would say falls under symptoms #s 1,2,6,9, and 10.