Obama can focus on policy, naming a replacement for Larry Summers who wants to ease the economic strains on American households, or he can focus on politics, naming a candidate who appeases the corporate executive class.
The American money cartel is as dangerous as the Mexican drug cartel. Wall Street is winning the class war, and taxpayers supplied its weapons of choice: PR spin, lobbying, the money train to Congress, and constant bullying.
They used to say that the thing that is most likely to end war and conflict between the nations of the world would be an existential threat from a group of aliens from outer space. The same must be true for Democrats and progressives.