Labor and other Democratic lawmakers are trying to get the federal government’s next budget into shape before it leaves town on Thursday.
The House is expected to pass a bill that would help pay for the $1.1 trillion federal spending plan the Trump administration announced Tuesday.
House Democrats plan to send a similar spending bill to the Senate.
But Republicans and President Donald Trump have expressed strong opposition to any legislation that includes spending cuts.
The spending bill has to pass both chambers by a simple majority, with Vice President Mike Pence and House Speaker Paul Ryan, R-Wis., having to break a tie.
The nonpartisan Congressional Budget Office said Tuesday that while the $19 trillion spending plan is expected have a $1 trillion annual cost over the next 10 years, it would offset most of that by cutting other major taxes and benefits.
The plan also includes new taxes for individuals, businesses and the wealthy.
The CBO also said the budget plan would provide $500 billion in tax relief to individuals and businesses, but that tax cuts would be offset by a $300 billion cut in the corporate tax rate.
In the first of two speeches on Thursday, House Minority Leader Nancy Pelosi, D-Calif., also urged Republicans to consider a plan that would reduce the corporate rate from 35 percent to 20 percent, but would preserve the individual rate.
Pelosi, along with other Democrats, has criticized the Trump White House for not doing more to cut taxes.
The plan includes a $20 billion increase in the child tax credit, a $15 billion increase for families with children and an $8 billion increase to Medicare.
Democrats want to offset some of those tax increases by lowering the corporate income tax rate to 20.1 percent from 35.5 percent.
But the tax plan does not include a plan to lower the estate tax, which is currently 35 percent.
The White House has said it will propose a “bigger, bolder” plan to reduce the estate taxes, but has not given details.