No, one can mock or insult the President with impunity. The First Amendment applies here. It should be noted that in the 1790s, the Federalist-controlled Congress passed the Sedition Act which made criticizing the President or Congress a crime.
Polycystic kidney disease (PKD) is a genetic disorder characterized by the growth of numerous cysts in the kidneys. The kidneys are two organs, each about the size of a fist, located in the upper part of a person's abdomen, toward the back. The kidneys filter wastes and extra fluid from the blood to form urine.
About one-half of people with the most common type of PKD progress to kidney failure, also called end-stage renal disease (ESRD). PKD can also cause cysts in the liver and problems in other organs, such as blood vessels in the brain and heart. The number of cysts as well as the complications they cause help doctors distinguish PKD from the usually harmless simple cysts that often form in the kidneys in later years of life.