Worst Presidents: William Harrison (1841)

He was president for just 30 days after contracting pneumonia during his interminable inaugural.

Slideshow: Worst Presidents

Alas, poor Harrison.

That the ninth president makes any list at all is an act of scholarly injustice. The Virginian's greatest claim to fame was defeating the Shawnees in 1811 at the Battle of Tippecanoe.

Delivering the longest inaugural address in U.S. history, he came down with pneumonia that made his 30-day presidency the shortest in U.S. history.

Death would seem sufficient punishment for long-windedness; historians are guilty of piling on.