Republicans Face Urgent Deadline to Secure Defense Funding Amid Democratic Shift

Washington — Republican lawmakers must rush to pass defense funding during the lame duck session after a devastating midterm election loss, yet face opposition from Democrats seeking to impeach Defense Secretary Pete Hegseth and limit Iran war efforts.

With just five legislative weeks remaining in the year, GOP leaders may attempt a last‑ditch push for partyline reconciliation funding and a fiscal 2027 budget before Democrats gain control of the House and Senate in January, according to experts.

The primary obstacle: Democrats may be unwilling to engage in negotiations.

“There is essentially no chance of passing appropriations, as that requires 60 Senate votes. Republicans lack the 60 votes needed for any appropriations bill,” said Todd Harrison, defense analyst with the American Enterprise Institute. “Democrats have no incentive to reach an appropriations deal, as they now hold substantial majorities in both chambers.”

Another critical item on the agenda: the FY27 National Defense Authorization Act, an annual bill that provides policy direction rather than direct funding, featuring proposals such as troop pay increases and defense acquisition reforms.

The Pentagon has requested funding for defense through three distinct vehicles:

• A $1.15 trillion discretionary defense budget
• A $350 billion mandatory funding request to be funded via partyline reconciliation
• A supplemental funding request of $67 billion for defense to recoup expenses associated with the Iran war

Democrats have identified key oversight priorities during the lame duck period, including investigating Pentagon contracts tied to the Trump administration and potential mismanagement of the Iran war.

“If Hegseth resigns now in the lame duck session, the Senate, while still under Republican control, has time to confirm a new Secretary of Defense,” said Harrison. “Should that fall to the next Senate with a 54‑55 seat majority, Trump will face significant difficulty confirming any nominee.”

Rep. Adam Smith, who will likely chair the House Armed Services Committee, signaled support for a more restrained defense budget. “We must push for a realistic and sustainable approach to national security — one that does not require a defense budget exceeding $1 trillion or significant cuts to domestic programs,” he wrote in a letter to Congress.

House Appropriations Committee chair Rep. Rosa DeLauro noted she is reviewing potential conflicts over how previously provided reconciliation dollars were spent at the Defense Department, though she did not explicitly call for lower defense spending in a separate letter.

The FY27 Defense budget is expected to be roughly $1.1 trillion, leaving the Pentagon faced with difficult decisions about which mandatory program items to transfer to discretionary funding and which to cut to free up those dollars.

TD Cowen analyst Roman Schweizer warned that a sweeping Democratic takeover of the House and Senate would present the toughest scenario for defense spending, describing the lame duck period as critical as the final opportunity for reconciliation, with the NDAA and defense appropriations likely deferred until early 2027.

VJ Sahi of Clark Street Associates told Breaking Defense that early in the lame duck session, Republicans may view a reconciliation bill as the last opportunity and could advance a mandatory funding package that would at least address Iran war costs.

However, even without Democratic participation, Republican leadership will confront additional hurdles in securing partyline support for reconciliation, according to defense analysts.

The House passed a budget resolution in July that would initiate the reconciliation process with $60 billion allocated for defense. Yet Senate Majority Leader John Thune has repeatedly refused to advance it in the upper chamber, stating that insufficient Republican votes exist to pass the measure.

Should midterm departing Republicans fail to attend the lame duck session or withdraw enough support, they may find themselves lacking the majority needed even for simple budgetary decisions, Harrison alerted.

“I believe the most likely outcome is that the bill stalls completely, possibly without even reaching a vote,” Harrison said.

Capital Alpha Partners analyst Byron Callan reduced his probability estimate for successful defense reconciliation passage from 15 percent to 10 percent. He remained optimistic about the chances of passing FY27 appropriations, projecting a 50 percent likelihood of a government shutdown after the current continuing resolution expires on December 11.

“The magnitude of Democratic gains in the House and Senate suggests little will be accomplished on defense legislation in November‑December,” Callan wrote in an investor note.

If budget negotiations are delayed until January, when the 120th Congress convenes, Democrats could potentially allocate more funds to nondefense priorities while limiting defense spending to well below the $1.5 trillion target set by the Trump administration for FY27.

Rep. Adam Smith, who will likely chair the House Armed Services Committee, indicated support for a more restrained defense budget, emphasizing the need for sustainable national security strategies that avoid excessively large appropriations at the expense of domestic programs.

“The Hegseth Question”

A major concern looming over the lame duck period is the fate of Defense Secretary Pete Hegseth, who has become a target of lawmakers blaming him for the Iran war — widely seen as a key factor behind the GOP’s midterm losses.

Rep. Thomas Massie, R‑KY, pledged to bring articles of impeachment against Hegseth when Congress returns to Washington. “There is one scenario in which I will not reintroduce impeachment articles: Hegseth resigns,” Massie stated in a tweet.

Sen. Marsha Blackburn could appoint Hegseth to fill her Senate seat if she departs government. However, if that plan proceeds, Hegseth should resign promptly, Harrison advised. “If Hegseth exits during the lame duck session, the Senate, under GOP control, would have time to confirm a new Secretary, but the next Senate with roughly 54‑55 seats would present a difficult environment for presidential confirmations.”

Massie intends to force a vote on Hegseth’s impeachment by filing a privileged resolution, which would compel a House vote within two days.

A lobbyist noted that Vice President JD Vance’s recent social media post blaming the Iran war for the GOP defeat would provide some Republican lawmakers with a political cover to vote for Hegseth’s impeachment. “For a Republican aligned with JD Vance as the party’s future, a vote to impeach Hegseth over Iran can be viewed as the final political act of their congressional career,” the lobbyist explained.

In an earlier post, Hegseth published a defiant video addressing the Iran war, calling it a “courageous and historic effort” and directly referencing the potential impeachment. He accused a “disgruntled, defeated congressman” and his allies of filing sham articles of impeachment, comparing the move to previous attacks on President Trump.

Trump has denied speculation that he might replace Hegseth, stating on Wednesday that the Secretary “is doing a very good job.”

When asked whether he would consider promoting Hegseth to fill Blackburn’s Senate seat, Trump responded that the appointment would be popular if possible, though he had not heard such a suggestion yet. Harrison disagreed with this assessment.

Harrison noted that the comment from Trump “suggesting you’d be great at a different job” would be a strong indication not to listen.

“The Hegseth Question”

Democrats have made clear that investigating the Trump administration will be a major legislative priority during the lame duck session.

In September, Rep. Jim Himes, the top Democrat on the House Permanent Select Committee on Intelligence, informed the National Defense Industrial Association that an investigation into corporate donations to President Donald Trump’s White House ballroom project — involving defense contractors like Lockheed Martin — is likely.

Some Democrats, including Sen. Elizabeth Warren and Rep. Jason Crow, have long raised concerns about Pentagon contracts awarded to companies linked to the Trump family.

“I believe this will create issues for defense contractors, especially those invested by the president’s family,” said the lobbyist.

In a Wednesday letter outlining Democratic priorities for the House Appropriations Committee, Smith supported reestablishing an oversight subcommittee to investigate waste, fraud, and abuse by defense contractors as well as current operational practices.

“The list of potential oversight topics is extensive, but the illegal war against Iran remains a top priority for me and the American people. Other concerns include unauthorized military strikes in the Caribbean and Latin America, deployment of troops to U.S. cities, and the politicization of the Armed Forces and purging of ranks based on loyalty.”

“The NDAA could serve as an early test case for Democrats seeking to impose greater oversight on the Iran war and Hegseth’s office before approving the defense bill,” Harrison affirmed.

The renaming of the Pentagon as the “Department of War” is another Democratic proposal targeting provisions in the NDAA.

California Rep. Ro Khanna suggested that any forthcoming continuing resolution could prohibit funds for combat operations in Iran and cut all aid to Israel.

“End the Iran war like we did for Vietnam,” he said.

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