WASHINGTON (AP) -- Republicans rammed a $1.5 trillion overhaul of business and personal income taxes through the House Thursday, edging toward the code's biggest rewrite in three decades and the first major legislative triumph for President Donald Trump and the GOP after 10 bumpy months of controlling government.
The mostly party-line 227-205 vote masked more ominous problems in the Senate. There, a similar package received a politically awkward verdict from nonpartisan congressional analysts showing it would eventually produce higher taxes for low- and middle-income earners but deep reductions for those better off.
Those projections came a day after Wisconsin Sen. Ron Johnson became the first GOP senator to state opposition to the measure, saying it didn't cut levies enough for millions of partnerships and corporations. With at least five other Republican senators yet to declare support, the bill's fate is far from certain in a chamber the GOP controls by just 52-48.
Even so, Republicans are hoping to send a compromise bill for Trump to sign by Christmas.
"Now the ball is in the Senate's court," Vice President Mike Pence urged after the House vote.
Speaking at a conservative Tax Foundation dinner in Washington, Pence said, "The next few weeks are going to be vitally important and they're going to be a challenge." But he added, "we're going to get it done" before the end of the year.
An earlier White House statement that "now is the time to deliver" also underscored the Republican Party's effort to maintain momentum and outrace critics. Those include the AARP lobby for older people, major medical organizations, Realtors -- and, in all likelihood, every Senate Democrat.
With this summer's crash of the GOP effort to dismantle President Barack Obama's health care law, Republicans see a successful tax effort as the best way to avert major losses in next year's congressional elections. House Republicans conceded they are watching the Senate warily.
"Political survival depends on us doing this," said Rep. Kevin Cramer, R-N.D. "One of the things that scares me a little bit is that they're going to screw up the bill to the point we can't pass it."
The House plan and a comparable proposal Republicans hoped to push through the Senate Finance Committee by week's end would deliver the bulk of their tax reductions to businesses.
Each would cut the 35 percent corporate tax rate to 20 percent, while reducing personal rates for many taxpayers and erasing or shrinking deductions. Projected federal deficits would grow by $1.5 trillion over 10 years.
As decades of Republicans have done before them, GOP lawmakers touted their tax cuts as a boon to families across all income lines and a boost for businesses and the entire country.
"Passing this bill is the single biggest thing we can do to grow the economy, to restore opportunity and help those middle income families who are struggling," said House Speaker Paul Ryan of Wisconsin.
Democrats said the measure would disproportionately help the wealthy and mean tax increases for millions. Among other things, the House legislation would reduce and ultimately repeal the tax Americans pay on the largest inheritances, while the Senate would limit that levy to fewer estates.
The bill is "pillaging the middle class to pad the pockets of the wealthiest and hand tax breaks to corporations shipping jobs out of America," declared House Minority Leader Nancy Pelosi of California.
Thirteen House Republicans -- all but one from high-tax California, New York and New Jersey -- voted "no" because the plan would erase tax deductions for state and local income and sales taxes and limit property tax deductions to $10,000. Defectors included House Appropriations Committee Chairman Rodney Frelinghuysen, R-N.J., who said the measure would "hurt New Jersey families."
Trump traveled to the Capitol before the vote to give House Republicans a pep talk.
"He reminded us that is why we seek these offices," said Rep. Steve Womack of Arkansas. Participants said he told them he'd spoken to Johnson, the dissenting GOP senator, and said, "He'll come around."
Besides Johnson, Republican Sens. Susan Collins of Maine, Jeff Flake and John McCain of Arizona, Bob Corker of Tennessee and Lisa Murkowski of Alaska have yet to commit to backing the tax measure.
Congress' Joint Committee on Taxation estimated that the Senate plan would mean higher taxes beginning in 2021 for many families earning under $30,000 annually. By 2027, families making less than $75,000 would face tax boosts while those making more would enjoy cuts.
Republicans attributed the new figures to two provisions.
One would end the measure's personal tax cuts starting in 2026. The other would abolish the "Obamacare" requirement that people buy health coverage or pay tax penalties.
Eliminating those fines is expected to mean fewer people would obtain federally subsidized policies, and the tax analysts count a reduction in those subsidies as a tax increase. The nonpartisan Congressional Budget Office has projected that would result in 13 million more uninsured people by 2027, making the provision a political risk for some lawmakers.
Republicans on the Finance panel showed no signs of backing down. They said the same Taxation Committee tables showed that higher earners were still bearing a large share of the overall tax burden and that except for the halted health subsidies all income groups would get tax breaks.
Ending the personal tax cuts for individuals in 2026, derided as a gimmick by Democrats, is designed to pare the bill's long-term costs to the Treasury. Legislation cannot boost budget deficits after 10 years if it is to qualify for Senate procedures that bar bill-killing filibusters.
Both chambers' bills would nearly double the standard deduction to around $12,000 for individuals and about $24,000 for married couples and dramatically boost the current $1,000 per-child tax credit.
But each plan also would erase the current $4,050 personal exemption and annul or reduce other tax breaks. The House would limit interest deductions to future home mortgages of up to $500,000, down from today's $1 million, while the Senate would end deductions like moving expenses and tax preparation.
Ryan said he'd seek to add tax breaks to help Puerto Rico recover from recent hurricanes to a House-Senate compromise.
Associated Press writers Kevin Freking, Richard Lardner and Matthew Daly contributed to this report.