Bush aides have charged that the Democratically controlled Senate has been slow to name conferees for a committee to resolve differences between the House and Senate versions of the bill.

CNN: Bush urges action on education; Democrats defend health care bill

But in August the Department of Homeland Security issued rules providing that the letters will count as evidence an employer knew a worker was illegal if he doesn't either resolve the discrepancy--perhaps a worker got married and changed her name--or fire the worker within 93 days.

FORBES: Who's Gonna Do the Work?