House Democrats had hoped to release a final bill Friday, but that was before a group of moderates and conservatives, known as Blue Dog Democrats, voiced their objections. House leaders are now promising a bill Monday with committee votes later in the week.

The Blue Dogs want a greater focus on cost containment within the health care system, such as reducing overpayments. They are also concerned about impact on small businesses and disparities in care in rural areas.

Blue Dog members said Friday that House Democratic leaders were beginning to hear their concerns but that more attention was needed.

"Addressed? Obviously we'll wait and see," Rep. Heath Shuler, D-N.C., said after meeting with House leaders.

Several Blue Dog members voiced concerns about new taxes, and it's unclear whether the Senate would go along with the House on a tax on high earners. Republican senators have said revenues for health overhaul should be related to health care in some way. A health insurance benefits tax that got shot down in the Senate this week was related to health care, since many economists say it would help hold down costs by forcing people to switch to more frugal coverage.

Asked Thursday if the Senate could support a "millionaire's tax" to pay for health care, Budget Committee Chairman Kent Conrad, D-N.D., answered: "I don't know."

Whatever the final plan, Obama's political machine is stepping up efforts to gin up support. Organizing for America is asking supporters to join door-to-door canvasses on upcoming weekends to ask their neighbors to support the president on health care.

Ways and Means members said that an earlier proposal to tax soda was unlikely, but a new coalition of beverage and food producers and marketers, joined by some conservative groups, was taking no chances.

The group will begin running ads in Washington area newspapers this Sunday opposing proposals to tax sugary drinks. The ad shows a smiling couple sitting outside a lakeside tent with the headline, "In: Budget Vacations. Out: Beverage Taxes."