As he did yet again in Thursday's fireside chat with a country mired in rancor and angst, George W. Bush demonstrated the remarkably adept ability to rise to the moment. Just as his critics are pronouncing him poll-dead and his second term an abject failure, he does two things that mark him as a leader destined to join the ranks of America's greatest presidents. In important speeches, like the president's compassionate reassurance to the victims of Hurricane Katrina that their lives will be put back together and their communities rebuilt, Bush's rhetoric connects. It attaches the urgency of the moment,...