If you have any doubt, read Froomkin's column today:
Faced with the frightening prospect of public hearings and active Congressional oversight into President Bush's contested domestic spying program, the White House sent out its big dog -- Vice President Cheney -- to bring straying moderate Republicans to heel.
Indeed, no matter what you have may have heard lately, the fact is that Cheney is still the Bush Administration's most ferocious warrior. Never mind the rumpus about his initial refusal to tell anyone -- even Bush -- that he shot someone while hunting in Texas. Disregard those reports of tensions between the vice president's office and, well, pretty much everyone else at the White House.
Cheney took point in the White House effort to quash a full-blown investigation into the program. And the guy still gets the job done.