Premise: John Sidney McCain III ( born August 29 , 1936 ) is an American politician who currently serves as the senior United States Senator from Arizona . He was the Republican nominee for the 2008 U.S. presidential election . He was a prisoner of war until 1973 . Elected to the U.S. House of Representatives in 1982 , McCain served two terms . He was first elected to the U.S. Senate in 1986 , winning re-election easily five times , most recently in 2016 .
Hypothesis: John McCain is the world's oldest turtle.
Label: CONTRADICTION