Let’s assume Reagan had the lowest elderly IQ of any U.S. President (he got dementia) and Nixon had the highest teenaged IQ (he aced the Ottis). What does this tell us about the average IQ of U.S. Presidents?
Reagan
About one in six (British?) people over age 80 have dementia. Thus one can consider a dementia diagnosis (over age 80) as more or less equivalent with scoring at or below the 16th percentile (IQ 85) on an IQ test. On the other hand, only the best and brightest tend to live over 80. If everyone in the UK lived over 80, probably 25% would get dementia and the 25th percentile equates to IQ 90.
Nixon
Daniel Seligman wrote:
Fortune magazine, July 15, 1991
Nixon biographer Roger Morris says RMN tested at 143 when he was in Fullerton High School in California. Kennedy biographer Thomas C. Reeves tells us JFK tested at 119 just before entering Choate Academy. That last figure looks low. Might there have been some kind of testing error? The ”standard error” for the Otis test — the one taken by both future Presidents — was six IQ points.
I had since learned that the Otis had a standard deviation of about 10 in those days so Nixon’s IQ of 143 would actually equate to about 165 on the standard 15 sigma scale, making him almost certainly the smartest U.S. President ever. Of course the Otis items were not selected at random, so there’s no reason to assume the curve was Gaussian, and thus equivalent to a modern IQ of 165. On the other hand there’s no strong reason to assume it was less than that either.
Conclusion
Assuming Reagan had an IQ around 90 (probably higher when he was younger) and Nixon had an IQ of 165 (probably lower when he was older), let’s split the difference and assume the average U.S. President has an IQ around 130 (two standard deviations above the U.S. mean).
Just as the most physically dominant men in America (heavy weight boxing champions) are 2 standard deviations taller than the average U.S. man (on average), the most socially dominant men in America (U.S. Presidents) are about 2 standard deviations smarter.
Pumpkin Person 
the point is…
for those with ears to hear.
it’s totally obvious just listening to nixon in interviews and his publishing so many books after resigning.
how is it obvious?
it’s NOT that you agree with him. it’s just that he isn’t boilerplate. he’s obviously not a trained animal. unlike ALL other presidents (post ike) on film.
ike was military and therefore assumed to be stupid but he wasn’t.
another example of how nazis have the highest IQs of any political people.
Ricardo Francisco Eichmann (born November 1, 1955) is an Argentine-born German archaeologist. He was the director of the Orient Department of the German Archaeological Institute between 1996 and 2020 and previously a professor of Near Eastern archaeology at the University of Tübingen.
why is trump the only president to have rallies?
“because he’s a racist homophobe white trash, blah, blah, blah” says peepee.
no.
it’s because other presidents couldn’t do it.
what’s even weirder about trump is he can’t give scripted speeches.
i remember he gave a speech from the oval office in march of 2020 about covid. i saw it and thought, “sad!” and the stock market futures dropped by 10% during the speech iirc.
He’s smart at conning and entertaining people. If he were born poor he’d have been as successful as John Gotti.
Trump was so lucky he had an opportunity to become President in this day and age. with social media etc. he was able to grab peoples attentions like never before. i doubt that if he wouldve ran in an era with more direct information exchange that he wouldve been able to amass a cult following the way he did.
if peepee recalls from the epstein series, there was a florida detective who claimed to have a copy epstein’s palm beach videos. like snowden, he had moved to russia. he claimed for fear his life was in danger. here is RT from almost 2m ago.https://www.youtube.com/watch?v=gxkztQ0of8k&ab_channel=RTAmerica
What makes you think that dementia is simply low IQ + old age and not a pathology affecting people of all abilities? Incidence is probably higher among the less intelligent, but is dementedness even as good an indicator of peak cognitive function as head circumference?
IQ is fairly stable through the life span so if you’re -1 SD at age 90 (which qualifies as demented), you were probably around -0.67 SD at age 11. The correlation is between IQ at age 11 and age 90 is 0.67.
Of course I’m assuming a default hypothesis (demented and non-demented being on the same regression slope)
Did that sample include those diagnosed with dementia?
yes it did, and when they tried excluding them, the correlation went down:
“The correlation of age-11
and age-90 MHT scores was .54 (95% CI = [.38, .68])
when both scores were age corrected and was also .54
(95% CI = [.37, .67]) when only the age-11 MHT scores
were age corrected. After we omitted the 2 subjects with
a history of dementia and the 3 whose medical history of
dementia was uncertain, the correlation (adjusted for age
at both testing occasions) was .51 (95% CI = [.34, .66];
n = 101). After we omitted 2 additional participants
whose MMSE score was less than 24, the correlation was
.45 (95% CI = [.29, .58]; n = 99). Among the LBC1921
sample members who were tested at age 90, age-11 MHT
scores were less spread (SD = 11.1) than they are in the
Scottish population as a whole (SD = 15.5; Maxwell,
1961). After we applied Equation 1 from Wiberg and
Sundström (2009) to the correlation of .54 to correct for
this restriction of range, the estimate of the age-11/age-90
MHT correlation in an unrestricted sample was .67”
dementia (or at least a subset referred to as Alzheimers) is related more to deterioration of the brains ability and is very genetic. also a lot of dementia cases are due to poor health a low SES etc.
in Reagans case it might be obsolete to refer to his case as arising from poor health or low social status etc. but it mightve just been highly genetic in his case which sometimes happens despite very high cognition in earlier age. earlier life intelligence may be unrelated to later life intelligence in some cases is what im hinting at.
IQ is fairly stable through the life span
evidence? there is none. such studies haven’t been done.
and absolute score is NOT stable. VIQ maxes at age 55. non-VIQ in college years. or so i have read. obviously these are averages and some very old people aren’t appreciably dumber than they were at age 22. but they’re rare.
https://journals.sagepub.com/doi/abs/10.1177/0956797613486487
Trump is a real-time reflective thinker.
The brightest Presidents came during the initial beginnings of the United States and created its influence early on in the countrys history. for example John Quincy Adams (the son of a previous President John Adams) had an estimated IQ of 155+. Thomas Jefferson etc. were also in that ballpark range of exceptional IQ.
TJ was posthumously correlated to the autism spectrum! this page on the autism wiki sums it up pretty well here:
https://autism.wikia.org/wiki/Thomas_Jefferson
OTOH there were possibly many very socially intelligent Presidents who probably had a higher functioning in that than general intelligence even. for example ive heard Bill Clintons and other Presidents having their charisma recounted from various sources over time.
Puppy time to end the tantrum.
what is happening is that the Presidents are becoming more pop culture icons than anything. this is a tragic end to leadership!