Democrats will build their national convention this week around a critical goal: countering the sense of disappointment many voters feel by persuading them President Barack Obama has a workable economic plan for the future.
It is a rebuttal to last week's Republican National Convention, where rival Mitt Romney worked to pry away these same voters by painting an image of Mr. Obama as a nice guy who isn't up to the challenge.
Mr. Obama must answer that charge directly by showin