Attorney General Alberto Gonzales is heading to Capitol Hill today to testify about his role in the dismissal of eight U.S. attorneys. In an opening statement released in advance, Gonzales says he has “nothing to hide.” But Gonzales indicates he may not be able to provide definite answers on the extent of his role in the firings. Meanwhile, the House Judiciary Committee is considering offering immunity to one of Gonzales’ former top aides, Monica Goodling. Goodling is the former counsel to Gonzales who served as the Justice Department’s liaison to the White House. She has so far refused to testify about her role in the scandal. Meanwhile, the Republican National Committee has rejected a demand from House Democrats to hand over emails related to the firings. Several top White House officials, including Karl Rove, used RNC email accounts apparently in an attempt to skirt laws dictating government accounts.