'splains a lot.

His constant reference to "low IQ" people tells me that at some point - probably when he was in grade school - Trump's parents were told that their son had a low or below-average IQ.

It's just another obvious "tell" - like when he lies and calls other people liars, etc.

Most people don't use the term "IQ" - they call people stupid, dumb, idiotic. The fact that he constantly references "IQ" makes it obvious that his actual IQ test results probably placed him in the "low IQ" category.

Donald does not have a very good brain. We know because he always lies and he tells us he has a good brain.

Let alone has one that registers on the charts.

When Donald questioned Tillerson's IQ, MENSA offered to give them both an IQ test.

Donald kinda left that alone.