The deadline for federal workers to receive financial incentives to quit is approaching. More than 2 million employees have until Thursday at 11:59 p.m.

Federal worker unions renewed their warning to their members that the offer is not trustworthy and may not be legal, despite administration assurances. At least 20,000 workers have so far taken the deal, according to a White House source. That is about 1% of the government's 2.3 million civilian workforce.