U.S. Supreme Court Justice Stephen Breyer, argue[s] that in choosing between different interpretations of the Constitution, we should select the one that will produce the best consequences. This method too suggests that Obama should be understood to be constitutionally barred from serving as president by reason of his age. We have had three presidents out of 43 who were younger when they took office than Obama would be on Jan. 20, 2009: Bill Clinton, John F. Kennedy and Theodore Roosevelt. All of them committed serious rookie blunders because they were too young.

Clinton's first two years in office were marked by a series of major overreaches, from his gays in the military plan to Hillary's failed health-care proposal. In 1994, the American people responded by putting Clinton on a tight leash with the first all-Republican Congress in 40 years.

Kennedy is widely known to have blundered in his 1961 summit in Vienna with Soviet leader Nikita Khrushchev. Kennedy's show of weakness led to the Cuban missile crisis and brought the world to the edge of annihilation.

Roosevelt engaged in gunboat diplomacy with Latin American countries such as Panama that tarred America's reputation in that part of the world for the next 100 years. We are still living with the legacy of T.R.'s youthful foreign policy excesses.