Here are some interesting articles on the case.
Washington Post: The article looks at the mistrust between the Senate and the Attorney General of the United States. The Republicans on the Panel don't have much time for the A.G.
The Politico: The leading Republican on Senate Judiciary Committee is not very happy with the A.G and that is a understatement. He does not support the right of the President to announce he will use Executive Privilege to close down investigation of the firing of US Attorneys.
Fox News: A showdown is developing between the Congress and the White House. Congress is about to pass Contempt Citations against those in the administration and those that have served.