Columbus and George W. Bush
Plenty of similarities. Both undertook foolish adventures with the support of the leader of Spain. Both invaded the island of Hispanola and changed the power structure there--Columbus in 1492, Bush in Haiti in 2004. Both were looking for things in the wrong place: Columbus was looking for Asia in the Caribbean, Bush was looking for weapons of mass destruction in Iraq. Neither one found what he was looking for, but neither one admitted he'd made a mistake. Neither one could properly pronounce the word "nuclear." Both served to expand empires. Both were responsible for thousands of unnecessary deaths. Neither one deserved the lavish praise he received.