Predictable, but nonetheless funny joke

Air Force One crashed in the middle of rural America. Panic stricken, the local sheriff mobilized and descended on the farm in force. When they arrived at the location of the crash, the disaster was catastrophic. The aircraft was completely destroyed with only a burned hulk left smoldering in a tree line that bordered the farm. The sheriff and his men searched the wreckage for survivers, but there were no remains, including that of the President.

The sheriff saw his friend, Hank, plowing the field nearby as if nothing had happened. They hurried over to the man's tractor. "Hank," the sheriff yelled panting and out of breath. "Did you see this terrible accident happen?"

"Yep. Sure did," Hank said seemingly unconcerned.

"Do you know that this airplane is Air Force One... the one for the President of the United States??"

"Yep."

"Were there any survivors?!"

"Nope. They's all kilt straight out," the farmer answered. "I done buried them all myself. Took me most of the mornin."

"President Obama is dead!?" the sheriff shouted in disbelief.

"Well, he kept-a-sayin he wasn't... but you know what a liar he is."

sorry if you wasted your time reading this....