In the days before the 1960 presidential election, John F. Kennedy appeared before an adoring, cheering throng at the old Boston Garden. “I do not run for the office of the Presidency after fourteen years in the Congress with any expectation that it is an empty or an easy job. I run for the Presidency because it is the center of action. And in a free society, the chief responsibility of the President is to set before the American people the unfinished business of our country.” As much as I admire John McCain, the choice is stark: this day, this moment, Barack Obama.