John Connally was a politician.
The Governor of Texas is the head of the executive branch of Texas 's government and the commander-in-chief of the state 's military forces . John Bowden Connally , Jr. ( February 27 , 1917June 15 , 1993 ) , was an American politician . As a Democrat he served as Secretary of the Navy under President John F. Kennedy , as the 39th Governor of Texas , and as Secretary of the Treasury under President Richard Nixon .