Massachusetts Sen. Edward Kennedy has returned to Washington in case his vote is needed on an economic stimulus bill.
Kennedy, who has been undergoing treatment for a brain tumor, had been resting in Florida.
Democratic leaders in the Senate say the tentative economic stimulus bill would cost about $827 billion.
Republicans insist some of the spending won't create jobs. A final vote isn't likely until Monday.
The tentative agreement was worked out behind closed doors between Democratic leaders and key Republican moderates.
It includes President Obama's signature tax cut of up to $1,000 for working couples, even if they earn too little to pay income taxes. Also included are breaks for homebuyers and people buying new cars. Much of the new spending would be for victims of the recession, in the form of unemployment compensation, health care and food stamps.
Three Republican senators have broken ranks and plan to vote for the measure. They are Susan Collins and Olympia Snowe, both from Maine, and Arlen Specter of Pennsylvania.
This program aired on February 7, 2009. The audio for this program is not available.