Here is an excellent analysis from the Washington Post about how Republicans have been consolidating power in the executive branch in order to push through their radical right agenda.
The campaign to prevent the Senate filibuster of the president's judicial nominations was simply the latest and most public example of similar transformations in Congress and the executive branch stretching back a decade. The common theme is to consolidate influence in a small circle of Republicans and to marginalize dissenting voices that would try to impede a conservative agenda.
House Republicans, for instance, discarded the seniority system and limited the independence and prerogatives of committee chairmen. The result is a chamber effectively run by a handful of GOP leaders. At the White House, Bush has tightened the reins on Cabinet members, centralizing the most important decisions among a tight group of West Wing loyalists. With the strong encouragement of Vice President Cheney, he has also moved to expand the amount of executive branch information that can be legally shielded from Congress, the courts and the public.
Now, the White House and Congress are setting their sights on how to make the judiciary more deferential to the conservative cause -- as illustrated by the filibuster debate and recent threats by House Majority Leader Tom DeLay (R-Tex.) and others to more vigorously oversee the courts.
"I think we have used the legislative and executive branch as well as anybody to achieve our policy aims," said Rep. Tom Cole (R-Okla.). "It is a remarkable governing instrument."
Pretty scary, if you ask me. Historians will probably refer to this period as the Bush Oligarchy.