Under Rove's direction, this highly coordinated effort to leverage the government for political marketing started as soon as Bush took office in 2001 and continued through last year's congressional elections.

In the past few months, revelations about a few dozen political briefings that Rove's team conducted at federal agencies and several election-related slides from those briefings have touched off investigations into whether the White House improperly politicized federal workers or misused government assets to win elections.

Investigators, however, said the scale of Rove's effort is far broader than previously revealed; they say that Rove's team gave more than 100 such briefings during the seven years of the Bush administration. The political sessions touched nearly all of the Cabinet departments and a handful of smaller agencies that often had major roles in providing grants, such as the White House office of drug policy and the State Department's Agency for International Development.

The White House has repeatedly said that Rove's team stayed within the confines of federal law and that the meetings were an effort to ensure the president's agenda and those who supported it were fully promoted. But the Office of the Special Counsel, which protects whistleblowers, has concluded that the Hatch Act was violated during one such briefing, conducted for General Services Administration political appointees by J. Scott Jennings, the White House's deputy director of political affairs.