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Not long ago Barack Obama, for those who were spellbound by him, had the stylishness of JFK and the historic mission of FDR riding to the nation's rescue. Now it is to Lyndon B. Johnson's unhappy presidency that Democratic strategist Robert Shrum compares the stewardship of Mr. Obama. Johnson, wrote Mr. Shrum in the Week magazine last month, never "sustained an emotional link with the American people" and chose to escalate a war that "forced his abdication as president."

A broken link with the public, and a war in Afghanistan he neither embraces and sells to his party nor abandons—this is a time of puzzlement for President Obama. His fall from political grace has been as swift as his rise a handful of years ago. He had been hot political property in 2006 and, of course, in...