McCain came out of that Vietnamese prison, got elected to the Senate gravy train and has stayed there ever since. He has done nothing to help this country, nothing to distinguish himself. He has merely secured his grip on his cushy job and taken every advantage he could. He could not have been a Secretary of Defense or anything else. He is what he could be - a nebbish.
You know...McCain also called the Swift Boat Vets LIARS...and he hadn't read their book or even talked to them!!