It would appear Gonzales has no plans on stepping down, even as the White House turns it’s back on him.

MSNBC.com:

Ex-aide: Gonzales signed off on attorney firings

Democratic panel chair Leahy says Justice Department motivation improper

WASHINGTON - Attorney General Alberto Gonzales was briefed regularly over two years on the firings of federal prosecutors, his former top aide said Thursday, disputing Gonzales’ claims he was aware of the dismissals from afar and newly undercutting his already shaky credibility.

Gonzales and former White House counsel Harriet Miers made the final decision on whether to fire the U.S. attorneys last year, said Kyle Sampson, the attorney general’s former chief of staff.

“I don’t think the attorney general’s statement that he was not involved in any discussions of U.S. attorney removals was accurate,” Sampson told a Senate Judiciary Committee inquiry into whether the dismissals were politically motivated.
[...]

White House steps back
The White House stepped back from defending Gonzales even before Sampson finished testifying.

“I’m going to have to let the attorney general speak for himself,” White House spokeswoman Dana Perino said as Sampson entered his third hour in front of senators. Perino made it clear that Gonzales needs to explain himself to Congress - and quickly.
[...]

A growing number of Democrats and Republicans has called for Gonzales to step down. Department spokesman Brian Roehrkasse said Thursday the attorney general has no plans to resign.