File this one under the "imagine if Joe Biden did this" category. Trump was asked on Air Force One this Friday about his "perfect" MRI scan during a recent visit to Walter Reed, and the brain-addled Trump couldn't explain why he needed it or what they scanned.

He just kept insisting again how wonderful the results were before bragging, again, about acing a cognitive test that they give to dementia patients.

REPORTER: Can you tell us why you needed to get an MRI, understanding the results of this. What was it for?

TRUMP: Because it's part of my physical. Getting an MRI is very standard.

[...]

I had an MRI. The doctor said it was the best result he has ever seen as a doctor. That's it.

I had an MRI as part of my standard yearly, or every I think they do it every two years, but I have a physical every year, and the result was outstanding.

[...]

I have no idea what they analyzed, but whatever they analyzed, they analyzed it well, and they said that I had as good a result as they've ever seen.

Now, the other thing I took is I took, as you know, a advanced, very advanced test on mental acuity, because I think a president should have to do that.

And as you probably heard, I aced it. I got a perfect score. I got the highest score. I got a perfect score. And the only reason I tell you that is it's one subject, unlike Biden and others, that you can take off your plate.

Well, that sure clears things up.