Democrats secure majorities to constrain Trump’s Iran policy
Following a midterm election defined by inflationary pressures and the ongoing war in Iran, the Democratic Party has secured majorities in both the House and Senate as of November 5, 2026. This shift in legislative power sets the stage for a confrontation with President Donald Trump over foreign policy, defense budgets, and the future of U.S. military involvement in the Middle East.
Legislative Leverage and the Power of the Purse
Democrats intend to utilize their new majority to constrain the administration’s military agenda. According to The Guardian, Senate Democratic leader Chuck Schumer has explicitly identified the “power of the purse” as the party’s primary tool to halt military escalation in Iran. The party aims to use its control of the budget to demand concessions or impose restrictions on the Pentagon’s $1.15 trillion defense spending request for 2027. Reporting by Al-Monitor notes that Democrats are also planning to launch rigorous oversight and investigations into the tenure of Defense Secretary Pete Hegseth.
The strategy involves attaching restrictive language to must-pass funding bills, specifically targeting operations in Iran, Yemen, Lebanon, and Gaza. However, this approach carries political risks. Former career diplomat Ryan Crocker, cited by The Guardian, warned that shutting down the government is a “two-edged sword” that could alienate voters who are already frustrated with the current state of national affairs.
Internal Republican Dissent Over Iran Strategy
The Republican Party is experiencing significant internal friction regarding the administration’s foreign policy. Vice President JD Vance publicly attributed the party’s electoral losses to the war in Iran, stating on X, “The reason we lost is the war.” While President Trump has acknowledged that the conflict contributed to rising gasoline prices, he maintains that the military action is necessary to prevent Iran from acquiring a nuclear weapon, as reported by The Guardian.
| Perspective | Stance on Iran War | Proposed Action |
|---|---|---|
| President Trump | Necessary for national security | Potential for continued or resumed strikes |
| JD Vance (Republican) | A political and strategic liability | End the war to refocus on domestic issues |
| Democratic Leadership | Unpopular and overextended | Restrict military funding via budget control |
Constraints on Presidential Authority
Despite their legislative majority, Democrats face significant hurdles in dictating foreign policy. While they can block funding, they cannot override a presidential veto. Historical precedent suggests that even when Congress has passed bipartisan resolutions to limit presidential war-making powers, such as the attempt to end U.S. support for the Saudi-led war in Yemen in 2019, the president has effectively neutralized those efforts through veto power, The Guardian reported.
The administration retains wide latitude over intelligence sharing, satellite services like Starlink, and the delivery of specific military hardware, such as Patriot interceptors, which do not always require new congressional authorization.
Israel Faces Challenge in Washington over Military Aid Cuts
The election results have created a volatile environment for U.S. relations with international allies. According to Amit Segal, a political analyst close to the Netanyahu administration, the government faces its biggest challenge in Washington since the 1975 reassessment following President Trump’s decision to end military aid to Israel. Michigan Democrat Abdul El-Sayed, set to become the first sitting Muslim senator, has publicly supported the administration’s decision to end military aid to Israel.
The coming months will demonstrate whether the newly empowered Congress can successfully translate its investigative energy into tangible policy, or if the executive branch will maintain its established trajectory in international conflicts despite the electoral mandate against it.