Top Democrats agree to a $3.5 trillion budget to advance alongside the bipartisan infrastructure deal.

The New York Times Daily Political Briefing

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Top Democrats announced on Tuesday evening that they had reached agreement on an expansive $3.5 trillion budget blueprint, including plans to pour money into addressing climate change and expanding Medicare among an array of other Democratic priorities, that they plan to advance alongside a bipartisan infrastructure deal.

Combined with nearly $600 billion in new spending on physical infrastructure contained in the bipartisan plan, which omits many of Democrats’ highest ambitions, the measure is intended to deliver on President Biden’s $4 trillion economic proposal. The budget blueprint, expected to be dominated by spending, tax increases and programs that Republicans oppose, would pave the way for a Democrats-only bill that leaders plan to push through Congress using a process known as reconciliation, which shields it from a filibuster.

To push the package — and the reconciliation bill that follows — through the evenly divided Senate, Democrats will have to hold together every member of their party and the independents aligned with them over what promises to be unified Republican opposition. It was not clear if all 50 lawmakers in the Democratic caucus, which includes centrists unafraid to break with their party like Senator Joe Manchin III of West Virginia and Senator Kyrsten Sinema of Arizona, had signed off the blueprint. The package is considerably smaller than the $6 trillion some progressives had proposed but larger than some moderates had envisioned.

Mr. Biden was set to attend lunch at 12:45 p.m. on Wednesday with Democrats, his first in-person lunch with the caucus since taking office, to rally the party around the plan and kick off the effort to turn it into a transformative liberal package. The blueprint, and subsequent bill, will also have to clear the House, where Democrats hold a thin margin.

Details about the outline were sparse on Tuesday evening, as many of the specifics of the legislative package will be hammered out after the blueprint is adopted. Mr. Warner said the plan would be fully paid for, though Democrats did not offer specifics about how they planned to do so.

The resolution is expected to include language prohibiting tax increases on small businesses and people making less than $400,000, according to a Democratic aide familiar with the accord, who disclosed details on the condition of anonymity.

Mr. Schumer said the resolution would call for an expansion of Medicare to provide money for dental, vision and hearing benefits, a priority for liberals. It is also likely to extend a temporary provision in the president’s pandemic relief law that greatly expands subsidies for Americans purchasing health insurance through the Affordable Care Act.