Honestly, I don't expect a presidential candidate to know everything. I do expect them to be willing and able to learn and then to exercise good judgment (you know, not automatically saying Yes to special interests).
The Saint has never evinced any true ability to do either. He is, possibly, even dumber than Beloved Leader (and, of course, as easily led as B.L.).
And here's just one example of the great intellect in action.