Must not mock the President (unless he is a Republican)

"Bush=Hitler" is forgotten

Fallout continued Monday over the performance of a rodeo clown who donned a mask resembling President Barack Obama during Saturday’s bull-riding competition at the Missouri State Fair.

The Missouri State Fair imposed a lifetime ban on the rodeo clown whose depiction of Obama getting charged by a bull was widely criticized

The rodeo clown won't be allowed to participate or perform at the fair again. Fair officials say they're also reviewing whether to take any action against the Missouri Rodeo Cowboy Association, the contractor responsible for Saturday's event.

“The announcer wanted to know if anyone would like to see Obama run down by a bull,” the posting said. “The crowd went wild. He asked it again and again, louder each time, whipping the audience into a lather.”

Another clown then apparently joined the performance.

“One of the clowns ran up and started bobbling the lips on the mask and the people went crazy,” the posting said. “Finally a bull came close enough to him that he had to move so he jumped up and ran away to the delight of the onlookers hooting and hollering from the stands.”

Source

Since when has it been wrong to mock the President?  Swingeing  criticism of leading politicians has been normal for centuries.  It's something that distinguishes democracy from tyranny.