On Thursday, a screenshot of a week-old Wall Street Journal article started spreading around Twitter. Why? A photo of Hillary Clinton, Bernie Sanders, and Martin O'Malley was accompanied by a caption ID'ing Clinton and Sanders, along with "an unidentified man." Did the Journal really make that big of a bonehead mistake? No, says the Journal's editorial page editor, Paul Gigot, it was in fact a joke at O'Malley's expense. "The caption is a joke about Martin O'Malley's obscurity as a Democratic presidential candidate," he said in a statement to The Washington Post. "The photo ran with a column by James Taranto, who sometimes refers to 'Martin O'Malley, whoever he is.' Liberals need a better sense of humor." Ouch. You have to know your campaign is in trouble when the stodgy Wall Street Journal is taking potshots at you.