However, the change in congressional control does not immediately remove Trump's authority to direct military operations. Democrats will not assume control until January, leaving the president with approximately two months to determine whether to intensify military action, pursue negotiations or maintain the existing pressure campaign.
Shayan Samii, a U.S.-based national security expert, told RFE/RL's Radio Farda that Trump still has room to restart military operations before Democrats take control of Congress. He also argued that legislative efforts to restrict the war would face significant obstacles because any measure passed by Congress could require the president's approval or a two-thirds majority in both chambers to override a veto.
The president's next decision will also be shaped by Iran's threats of retaliation, pressure from Israel and diplomatic efforts mediated by Qatar.
Renewed large-scale military campaign
One possibility is a return to a broader military offensive against Iran, potentially targeting infrastructure beyond the military and nuclear facilities already hit.
Trump has repeatedly indicated that major strikes could resume after the midterm elections, while Israeli Prime Minister Benjamin Netanyahu has reportedly encouraged Washington to take that route.
A renewed campaign could extend the previous U.S. and Israeli targeting strategy to bridges, railways, electricity infrastructure and other facilities critical to Iran's economy. During an earlier phase of the conflict, Trump threatened to destroy Iran's power plants.
Iran's main oil export terminal at Kharg Island remains another potential target. Previous attacks on the island were limited to military installations, while its energy infrastructure has not been struck. The U.S. naval blockade of Iranian ports has already pushed the country's oil exports close to zero, reducing the immediate need for Washington to attack the terminal.
Shahin Modarres, an Iranian security expert based in Rome, warned that the conflict could enter a more destructive phase if diplomatic and economic pressure fails to secure Tehran's compliance.
He said a wider campaign could target Iran's energy and economic infrastructure alongside the remaining elements of its nuclear and missile programmes, particularly Pickaxe Mountain, a heavily fortified underground complex near Natanz.
Modarres argued that Washington could seek to weaken the Iranian government to the point where elements of the existing leadership are forced to surrender power or accept a new political arrangement.
Tehran, however, has warned that another major attack would trigger a broader response. On October 31, Supreme Leader Mojtaba Khamenei directed military commanders to prepare an immediate and geographically unrestricted response to any renewed assault.
The Islamic Revolutionary Guards Corps has also threatened U.S. military bases outside the Middle East, regional energy infrastructure and undersea communications cables in the Persian Gulf.
Such retaliation could widen the conflict beyond the countries directly involved in the previous fighting, with potential consequences for regional security, oil transportation and global energy prices.
A limited strike followed by an attempt to exit
A second option would involve a short but intensive military operation designed to secure a political or strategic victory without committing the United States to another prolonged war.
Reports in late October indicated that the Trump administration had discussed the possibility of a brief campaign against Iran with regional allies after the midterm elections.
Under this approach, Washington could concentrate its attacks on a major strategic target, including Pickaxe Mountain, before declaring that Iran's nuclear capabilities had been sufficiently weakened and shifting towards negotiations.
The facility is believed to have sections buried between 80 and 100 metres underground, making it difficult to independently establish the extent of damage from any airstrike.
A limited operation could also provide an opening for discussions over reopening the Strait of Hormuz in exchange for some sanctions relief, while postponing more complicated negotiations over Iran's nuclear programme.
However, Tehran may not accept Washington's preferred timetable. Iran's military command, the Khatam al-Anbiya Central Headquarters, has warned that an attack on Pickaxe Mountain would constitute a renewed regional war.
Iran could therefore respond with sustained military action rather than allow the United States to declare victory and withdraw. A prolonged retaliation would increase the political, military and financial costs of the operation for Trump.
Continued confrontation without a formal peace agreement
Trump could also maintain the existing military and economic pressure without launching another full-scale offensive or reaching a comprehensive agreement with Tehran.
This approach could involve continued naval restrictions on Iranian shipping, U.S. Navy escorts for commercial vessels passing through the Strait of Hormuz and occasional strikes described by Washington as defensive operations.
However, the arrangement would leave both countries exposed to renewed confrontation without resolving the underlying disputes.
Iranian President Masud Pezeshkian said in late October that his country needed to move beyond the prolonged condition of neither war nor peace.
Samii also questioned how long the current approach could remain sustainable, arguing that isolated military operations against Iranian facilities would not provide a lasting solution.
He noted that from mid-2027, attention in Washington would increasingly shift towards the 2028 presidential election. Candidates from both political parties would face pressure to present a more durable policy towards Iran rather than leave the conflict unresolved.
Qatar-mediated interim agreement
Diplomacy remains another route, with Qatar facilitating discussions around a limited arrangement that could temporarily halt hostilities and ease restrictions on shipping.
The proposed framework resembles a memorandum of understanding reached in June, which briefly suspended fighting and lifted the naval blockade before the arrangement collapsed.
Iran has offered to reopen the Strait of Hormuz within two days if Washington accepts seven conditions. These include lifting the naval blockade, easing sanctions, guaranteeing an end to attacks and securing a regional ceasefire that also covers Lebanon.
The potential agreement would offer a way to reduce immediate tensions without resolving the wider dispute over Iran's nuclear programme.
Washington wants a verifiable commitment that Tehran will not rebuild its nuclear capabilities, while Iran insists that substantive nuclear negotiations can only begin after its conditions are addressed.
The diplomatic possibility has attracted market attention. Brent crude fell below $100 per barrel on November 4 amid expectations that the election outcome could create room for a negotiated settlement.
Modarres argued that military pressure and diplomatic engagement could continue simultaneously, suggesting that Washington may preserve an opportunity for Tehran to accept an agreement even if hostilities resume.
He also pointed to the political ambitions of Vance and U.S. Secretary of State Marco Rubio, both viewed as potential contenders in the 2028 presidential race, as another factor that could influence how the administration handles the conflict.
Factors that could derail any of the four options
The eventual direction of the conflict will not depend solely on decisions in Washington. Israel could independently take military action if its government concludes that the United States is moving towards an agreement that does not sufficiently address its security concerns.
Hard-line factions within Iran could also undermine negotiations. The collapse of the June memorandum was partly attributed to internal divisions and attacks on shipping, demonstrating how opposition within Tehran could weaken an agreement even after diplomatic progress.
The midterm results could further complicate negotiations. Some analysts believe Iran may interpret the Republican defeat as evidence that the conflict has weakened Trump's domestic political position, potentially encouraging Tehran to demand greater concessions rather than accept an agreement quickly.
Ultimately, Trump has not committed to a definitive timetable for ending the war. Asked on November 4 when the conflict would end, he repeated his earlier position: "Whenever I want it to."
His response leaves open the possibility of further military action, but the combination of domestic political pressure, Iranian threats and diplomatic engagement means that the next phase of the conflict could take several different directions.