Warren Harding low in IQ?
Take a look at his record.

Yes, He was elected by 60% of the voters, a bad augury, since popularity generally equates with mediocrity.
Yes, he worked for disarmament, an impossible goal with humankind.
Yes, in the Senate and in campaigning he was excellent in appearance and speech- hmmm, a parallel to the current situation?
Yes, he supported women's suffrage, ratified the 19th Amendment, and we all know where that led!
Yes, he helped establish the Bureau of Veterans Affairs; weren't veterans better left to sell apples and bad neckties on the street?
Yes, he worked to promote agriculture and industry and the merchant marine, and we all know business is bad for the common man (might have to take employment).
Yes, he called for a department of public welfare, and some of the programs later put into effect under that horrid F. D. R.

He died after only two years in office.