CNN

John McCain's military service doesn't automatically qualify him to be president according to retired General Wesley Clark.

General Clark is a former NATO commander who backed Hillary Clinton and now supports Barack Obama. He says that performing heroic military acts is not a substitute for command experience. Clark says he honors McCain's service as a POW, and calls him a hero. He credits McCain's time on the Senate Armed Services Committee and his travel worldwide, but he points out that John McCain hasn't held executive responsibility. General Clark says, "I don't think riding in a fighter plane and getting shot down is a qualification to be president.”

McCain was more than just a fighter pilot, though. After being a POW, he went on to become the commanding officer of the largest squadron in the U.S. Navy.

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