Lord Acton said it best: "Power tends to corrupt; absolute power corrupts absolutely." We have been bombarded this week with Washington Post stories describing just that when it comes to Dick Cheney.

The "power ranger" insists on redefining the executive branch (or the legislative branch) and pursues policies from the vantage point of a modern dictator, with little regard for the law. What he has done has not only had severe negative consequences for all manner of foreign and domestic policy. It has redefined government, at least for the moment.

Some would suggest that he deserves impeachment for his acts. At the very least it is time for a full-scale congressional investigation of his attempt at absolute power. And the Democrats should call for it, now.