Glenn Greenwald's perspective on this is a helpful guide to Senate Dems.
This is a real moment of truth for the Democratic Congress. Democrats, who have offered up little other than one failure after the next since taking power in January, can take a big step toward redeeming themselves here. No matter what, they must ensure that Gonzales' replacement is a genuinely trustworthy and independent figure.
That means that Democrats must not confirm anyone, such as Michael Chertoff, who has been ensconced in the Bush circle. Instead, the DOJ and the country desperately need a completely outside figure who will ensure that the prosecutorial machinery operates independently, even if -- especially if -- that means finally investigating the litany of Executive branch abuses and lawbreaking which have gone almost entirely uninvestigated, as well uncovering those which remain concealed.