The Senate on Monday effectively postponed legislation providing more than $16.1 billion next year to state Medicaid programs.
The vote to table the bill was 95 to 0.
The Medicaid provision, part of a $26 billion proposal designed to help states weather a tough economy, ran into trouble Monday when the Congressional Budget Office estimated the package would add $5 billion to the budget deficit.
Democratic leaders say they'll tweak their proposal to pay the entire tab. A vote on the revised bill is expected as early as Wednesday.