"Didn't think so...".  Well mucky, your brilliant thought and accusation that I don't have a source for my comment would be very wrong.  Did you really think I just made that up? I don't say things that I don't have a source for.  GW graduated from Yale and then got an MBA at Harvard Business School, so he has to be fairly intelligent.

Average IQ for US: https://iq-research.info/en/page/average-iq-by-country

GW Bush IQ: http://www.usnews.com/news/blogs/data-mine/2015/05/27/poindexter-in-chief-presidential-iqs-and-success-in-the-oval-office.  US News & World Report lists GW's IQ at 124.875.  I rounded up from 124.875 to 125, so yes, he is slightly dumber than I indicated, if you chose to quibble about .125 points.