Part 4/6:
The speaker shifts to a personal account about his recent physical examination. He reveals that he received excellent health scores, with all evaluations turning out "A." When asked if he would like to take a cognitive test—which measures mental acuity and cognitive function—he questions the difficulty of such a test, implying confidence in his mental sharpness.
He humorously notes that no U.S. president has ever publicly undergone such testing, partly because the tests are often challenging and the questions become increasingly difficult as they progress. His tone suggests skepticism that current leaders have been subjected to such scrutiny, or that they are capable of passing them convincingly.