WASHINGTON -- Narrow committee approval of a $66.4 billion stimulus plan opened the first round in a bitter Senate battle over whether government spending or tax cuts are a better economic tonic.

The Democratic-sponsored legislation, approved 11-10 along party lines Thursday by the Senate Finance Committee, is expected to reach the Senate floor next week. But, like a Republican version based on President Bush's tax relief proposals, it doesn't appear to have the votes to pass the full Senate.

"Neither side can do just what we want," observed Sen. John Breaux, a moderate Democrat from Louisiana.

Even as lawmakers from both parties talked of compromise, it remained unclear just how they will blend a $100 billion package passed last month by the GOP-led House and the vastly different Democratic bill.

Democrats said their measure would boost the ailing economy by spurring consumer spending and would do more for laid-off workers than Republican alternatives. But GOP senators called it a partisan exercise filled with unnecessary spending.

"I'm left asking why we're stuck in this partisan ditch," said Sen. Charles Grassley of Iowa, senior Republican on the Finance Committee.

Senate Majority Leader Tom Daschle, D-S.D., said debate would likely begin Tuesday. Democrats may attempt to attach $20 billion more in spending for homeland security items - extra spending that Bush says he would veto.

Daschle told reporters that Congress could still meet Bush's deadline of Nov. 30 for final passage of a bill, despite the differences. But doing so could require 60 votes in the 100-member Senate to overcome blocking tactics.

Bush has four main priorities: a repeal of the corporate alternative minimum tax; a new round of rebate checks aimed at lower-income workers; acceleration of income tax cuts now scheduled to take effect in 2004 and 2006, and enhanced expensing write-offs for business investment.

The House bill reflects those priorities, but GOP leaders added many other Republican tax-cut priorities, such as capital gains tax relief, and were barely able to pass their measure. The Senate Democratic bill includes the rebate checks and some business tax relief but contains much more spending.

At a cost of $35 billion over two years, it would extend unemployment benefits by 13 weeks for all laid-off workers, provide them a 75 percent federal match for health insurance policies and temporarily boost federal Medicaid payments to states. Bush prefers a more limited unemployment benefit extension and grants to states for health insurance or other needs.

To solidify Democratic votes, Baucus added numerous other provisions that Republicans say would have questionable economic impact.

For New York Democratic Sens. Charles Schumer and Hillary Rodham Clinton, there is a 10-year, $5.3 billion package aimed at helping New York City recover from the Sept. 11 terror attacks. It includes a $4,800 wage credit - normally reserved for companies that hire disadvantaged people - for businesses in lower Manhattan that hire anyone.

For Sen. Robert Torricelli, D-N.J., the bill authorizes $7 billion in bonds for Amtrak high-speed rail projects and $2 billion in bonds for a new Hudson River crossing from New Jersey to New York. Torricelli also won approval of an amendment giving income and estate tax relief to victims of the Sept. 11 terror attacks and their families.

Another last-minute change would create a one-year tax credit of between 10 percent and 20 percent for companies investing in rural broadband communications services, a priority of Sen. Jay Rockefeller, D-W.Va.

For farm-state senators, the Democratic bill provides $200 million for government purchase of farm products "that have experienced low prices" in 2000 and 2001, including apples, asparagus, bell peppers, pears, pumpkins and strawberries.

There's another $3 billion to clear a backlog of rural development projects such as wastewater plants, $3 million to exempt crop dusters from excise taxes, a $10 million break for citrus growers and a $25 million sugar beet disaster program.

"I thought this was going to be a stimulus package, instead of a pork package," Senate Minority Leader Trent Lott, R-Miss., said.

Still, there is a framework for an eventual compromise. All the plans feature the $14 billion in rebate checks for lower-income people and those who didn't get the full $300, $500 or $600 checks the first time. All also enhance expensing for businesses in some form and all aid the unemployed.