President Trump's budget hasn't been released yet, but that's not stopping some of Capitol Hill's most important Republicans from giving it a cold shoulder.

Trump's blueprint for the 2018 budget year comes out Tuesday, and it's certain to include a wave of cuts to benefit programs such as Medicaid, food stamps, federal employee pensions and farm subsidies.

The fleshed-out proposal follows up on an unpopular partial release in March that targeted the budgets of domestic agencies and foreign aid for cuts averaging 10 percent -- and made lawmakers in both parties recoil.

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The new cuts are unpopular as well.

"We think it's wrongheaded," said Rep. Mike Conaway, chairman of the House Agriculture Committee, when asked about looming cuts to farm programs. "Production agriculture is in the worst slump since the depression -- 50 percent drop in the net income for producers. They need this safety net," said Conaway, R-Texas.

Trump's budget plan promises to balance the federal ledger by the end of a 10-year window, even while exempting Social Security and Medicare retirement benefits from cuts. To achieve balance, the plan by White House budget director Mick Mulvaney relies on optimistic estimates of economic growth, and the surge in revenues that would result, while abandoning Trump's promise of a "massive tax cut."

Instead, the Trump tax plan promises an overhaul that would cut tax rates but rely on erasing tax breaks and economic growth to end up as "revenue neutral."

Mr. Trump is also targeting the Medicaid health program that provides care to the poor and disabled, and nursing home care to millions of older people who could not otherwise afford it.

The House had a bitter debate on health care before a razor-thin 217-213 passage in early May of a GOP health bill that included more than $800 billion in Medicaid cuts over the coming decade. Key Republicans are not interested in another round of cuts to the program.

According to a Washington Post report, Mr. Trump's budget would follow through on those proposed cuts in what the Congressional Budget Office estimated could off Medicaid benefits for about 10 million people over the next decade.

"I would think that the health care bill is our best policy statement on Medicaid going forward," said Rep. Greg Walden, R-Ore., chairman of the House Energy and Commerce Committee, which has jurisdiction over the program.

Details on Mr. Trump's budget will not be publicly released until Tuesday, but Mulvaney has briefed Republicans about what's coming and his staff has provided targeted leaks to the media.

According to the Post's report, people familiar with the budget plan said the White House will also call for giving states more flexibility to impost work requirements for those in different anti-poverty programs.

Mr. Trump's full budget submission to Congress is months overdue and follows the release two months ago of an outline for the discretionary portion of the budget, covering defense, education, foreign aid, housing, and environmental programs, among others. Their budgets pass each year through annual appropriations bills.

Mr. Trump's earlier blueprint proposed a $54 billion, 10 percent increase for the military above an existing cap on Pentagon spending, financed by an equal cut to non-defense programs. Those cuts rang alarm bells for many Republicans, who were particularly upset about proposals to eliminate community development block grants, slash medical research and eviscerate foreign aid.

Mr. Trump's GOP allies rejected such cuts when wrapping up long-overdue legislation for the current budget year, which ends Sept. 30. There's little sign they will have a change of heart now, especially with Trump's administration in turmoil and his poll ratings at historic lows.

"The budget's a starting point. We'll go to work from there," said Sen. John Hoeven, R-North Dakota, a member of the Senate Appropriations Committee.

Republicans controlling Congress have delayed action on their companion budget measure, waiting for Trump to go first. This year's budget debate, Republicans hope, would grease the way for a major overhaul of the loophole-cluttered tax system. But House conservatives also want to embark on a round of cuts to benefit programs and are open to Trump's suggestions for cuts to mandatory programs such as federal employee pensions.

Presidential budgets are mere suggestions, and the White House has discretion to assume higher economic growth rates of up to 3 percent or so under Trump's agenda of tax changes, loosened regulations and infrastructure spending.

Tuesday's budget will also include proposals such as paid leave for parents after the birth or adoption of a child, a $200 billion infrastructure plan that Trump officials claim could leverage, along with private investment, up to $1 trillion in construction projects, and funding for Trump's oft-promised wall along the U.S.-Mexico border.