“I think I get an A in terms of what I’ve actually done, but in terms of messaging, I’d give myself a C or a C-plus.”
Said Donald Trump.
That's not modesty at all, you should see. The C/C+ business is another way to say that the substantive greatness is truly great. If only he could express it well enough, you'd know how great it's been.
I offer this analogy. A person you've only seen in photographs says "I'm beautiful but I'm not very photogenic."