Johnson will need his hardliners' support as Democratic Minority Leader Hakeem Jeffries said the Republican funding bill would violate a bipartisan deal on spending enacted into law in 2023. Some leading Senate Democrats have argued that its structure would give Trump added authorities to move funds around at his will.
"If Republicans decide to take this approach, as Speaker Johnson indicated, it's his expectation that Republicans are going it alone," Jeffries said.
If the bill clears the House, it will move to the Senate where Republicans hold a 53-47 majority and the support of at least seven Democrats will be needed to pass it.
Some Senate Democrats across the party's ideological spectrum said they expected to back the measure.