A major Republican tax and spending bill—rooted in policies from former President Donald Trump’s first term—took a critical step forward on Sunday night, after days of internal conflict among GOP lawmakers.

Four hardline conservative Republicans who had previously blocked the bill over concerns it didn’t do enough to curb the national debt shifted their stance by voting “present,” rather than opposing the measure outright. Their move allowed the bill to advance through a key House committee, offering a rare legislative win for Speaker Mike Johnson.

However, the tepid support signals continued divisions within the party. The bill now moves to the House Rules Committee, where Johnson expects it to be taken up Tuesday or Wednesday, followed by a floor vote later in the week.

The legislation proposes a broad array of changes:

• Extending Trump-era tax cuts

• Eliminating taxes on tipped income

• Boosting military and border security spending

These provisions would be partially offset by cuts to Medicaid and clean energy subsidies established under President Joe Biden.

One of the conservative holdouts, Rep. Chip Roy of Texas, said the bill is still a work in progress but acknowledged that concessions from leadership persuaded him and others to let it move forward. “The bill does not yet meet the moment,” he warned, underscoring their continued push for deeper Medicaid work requirements and the removal of green energy tax breaks.

Meanwhile, moderate Republicans from high-tax states like New York and California are voicing their own frustrations. A provision in the bill that raises the state and local tax (SALT) deduction cap from $10,000 to $30,000 for couples is seen as insufficient. These lawmakers are pressing for an even higher threshold to provide more relief for their constituents.

Economists warn the proposal could add between $3 trillion and $5 trillion to the national debt, which currently exceeds $35 trillion. Ratings agency Moody’s cited the spiraling debt when it downgraded the U.S. credit outlook just days ago.

Should the bill clear the House, it will then head to the Senate for further debate and a final vote before possibly reaching President Biden’s desk.