Modern politics in many quarters is more performance art than serious policy, a never-ending quest to generate votes rather than address substantive issues. This was on full display last week with the introduction in the Senate of the so-called Living Wage for All Act. The legislation is sponsored by Sen. Chris Murphy, a Democrat from Connecticut who fancies himself a moderate. The measure would more than triple the federal minimum wage over the next 12 years, boosting the floor from $7.25 an hour to $25. Sen. Murphy called his proposal “common good capitalism.” So much for the party’s “affordability” agenda. “I’m not a democratic socialist,” he said, “but I do believe that the Democratic Party has been historically way too timid in taking on corporate power. I think our party should have