President Harry S. Truman I believe it was.
RED
The primary functions of red blood cells are to transport oxygen from the lungs to tissues, maintaining adequate tissue perfusion, and transporting CO2 from the tissues to the lungs.
The white globules have the role of defending the body in various ways, and structure the immune system.
There are no blue globes!
In my opinion, it has made a very “us versus them” look on both sides of the spectrum.
