The Senate plan, by contrast, includes $100 billion in upfront infrastructure spending to bolster the economy and calls for special fast-track rules to overhaul the tax code and raise $975 billion over 10 years in legislation that could not be filibustered. Even with that tax increase and prescribed spending cuts, the Senate plan would leave the government with a $566 billion annual deficit in 10 years, and $5.2 trillion in additional debt over that window.

“The first priority of the Senate budget is creating jobs and economic growth from the middle out, not the top down,” Ms. Murray said. “With an unemployment rate that remains stubbornly high, and a middle class that has seen their wages stagnate for far too long, we simply cannot afford any threats to our fragile recovery.”

Republicans were harshly dismissive of the Democrats’ priorities. “Honest people can disagree on policy, but where there can be no honest disagreement is the need to change our nation’s debt course,” said Senator Jeff Sessions of Alabama, the committee’s ranking Republican. “The singular truth that no one can escape is that the House budget changes our debt course while the Senate budget does not.”

Passage of the competing spending plans does advance a more orderly budget process after nearly three years of crises and brinkmanship. If House and Senate negotiators can agree on a framework for overhauling the tax code and entitlement programs like Medicare, Congress’s committees could go to work on detailed legislation, possibly under special rules that protect the bills from a Senate filibuster.