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—BEGIN QUOTATION—by nullius • st_mtim = 2020-10-12 17:58:07.057600524 +0000Minimally revised on grounds of perfectionism.
[—a quoted quip about idiots taking IQ tests—]Immodest proposal: Only smart people should be allowed to take IQ tests, to learn to read, or to vote.Every one being allowed to learn to read, ruineth in the long run not only writing but also thinking.
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USA has 330,000,000 people about 200,000,000 are old enough to vote.
https://www.highiqpro.com/iq-tests/what-does-my-iq-score-mean has the chart below

14% are at 70 to 85
34% are at 85 to 100
translation 48% are below average or 48% or 200 million = 96 million old enough to vote and affect America elections.
So if passing an iq test was used and 100 was the pass we would reduce 200mill -96mill =104 million can vote.
If people with a IQ under 100 weren't allowed to vote there wouldn't be any Dem. votes. That would be no fun.