The Fed chairman and the Treasury secretary face tough scrutiny as policymakers.
Treasury secretary calls for tighter reins on financial markets as mortgage turmoil continues.
Some argue government should do more to stop a negative feedback loop in the housing market.
The Fed chief and Treasury Secretary Paulson note tightening credit markets but expect a return to normal.
'Project Lifeline' is the Bush administration's latest step to ease the woes from the subprime-loan debacle.
Congress is likely to try other economic boosts. The GOP wants to extend the Bush tax cuts set to expire in 2010.
Package will give most US households $300 to $1,200 apiece, plus an extra $300 per child.
A bipartisan accord in the House calls for a $150 billion spending plan, including significant tax rebates. But senators may want add-ons.
Democrats and Republicans are anxious to get $300 to $1,200 in tax-rebate checks to wage earners by spring.