Obama's questioning of the relevance of Hillary Clinton's type of "experience" in confronting the new challenges the United States faces receives validation from an interesting case in American history.

It also points to why Obama's outsider status might actually be just what is needed to successfully restore the U.S. to international political creditworthiness.

Lincoln biographer David Herbert Donald showed how what might have been perceived as the Great Emancipator's serious shortcomings as a war president and commander in chief actually turned out to be some of his greatest assets.

Remember, Lincoln came to the presidency having only meager experience--much less than Sen. Obama's--in public office, let alone experience in the Executive Branch. (Lincoln's experience in the military was limited to little more than two months service during the Black Hawk War.)

According to Donald, Lincoln was also fortunately unburdened by convention, precedent, and standard operating procedures in facing war's challenge. (The parallels with Obama kind of leap from the page, no?)

However, Lincoln was also a quick study who grew into greatness through trial and error in pursuing the most significant of his goals.

Lincoln also knew democracy's ancient lessons. When Cicero finished speaking, the people said, "My, how well he spoke." But when Demosthenes finished speaking the people said, "Let us march!"

"Public sentiment is everything," Lincoln noted. "With it, nothing can fail, against it, nothing can succeed. Whoever moulds public sentiment, goes deeper than he who enacts statutes, or pronounces judicial decisions. He makes possible the enforcement of these, else impossible."

Obama's opponents are now trying to make a big deal of his observation--certainly historically correct--that Ronald Reagan's type of leadership created a sea-change (for good or for ill) in the American polity.

Obama was also pointing to the fact that Reagan was an excellent communicator who connected with the public in a way that many others--like Nixon and Bill Clinton--did not.

Martin Edwin Andersen, Churchton, Maryland

P.S. Memo to Hillary: Next Monday we will be celebrating Martin Luther King, Jr. Day, not Lyndon Johnson Day.