John McCain campaigned in the 56th quadrennial presidential election.
He was the Republican nominee for the 2008 U.S. presidential election.
The United States presidential election of 2008 was the 56th quadrennial presidential election.
Democratic Party nominees Barack Obama , a U.S. Senator from Illinois , and his running mate Joe Biden , a long-time U.S. Senator from Delaware , defeated Republican Party nominees John McCain , a long-time and current U.S. Senator from Arizona , and his running mate Sarah Palin , a Governor of Alaska.
This election also made McCain currently the only Senator who previously served as a presidential nominee and still remains incumbent , after John Kerry 's resignation from the U.S. Senate in 2013.
