"I am fully prepared to be commander in chief... I don't need on-the-job training"

John McCain's quote suggests that he is positive in his capability to lead the United States as Commander in Chief. He is indicating that he has the essential experience and knowledge to take on the role without requiring to find out on the job. This might be analyzed as a sign of his dedication to the function and his devotion to the American individuals. He is suggesting that he is ready to take on the obligation of leading the nation which he is positive in his capability to do so. This could be seen as a sign of his commitment to the American people and his devotion to the function of Commander in Chief. It might likewise be viewed as an indication of his self-confidence in his own capabilities and his willingness to take on the obligation of leading the country.