Murray Waas has the best article posted about this today:

Attorney General Alberto Gonzales testified before the Senate Judiciary Committee today that President Bush personally halted an internal Justice Department investigation into whether Gonzales and other senior department officials acted within the law in approving and overseeing the administration's domestic surveillance program.---"It was the president of the United States himself who prevented this investigation from going forward. In obstructing the investigation, he was protecting the people around him, and not protecting the Constitution," Hinchey said.