The results of the US midterm elections could have a major impact on American foreign policy, particularly its relations with Iran, Israel and Ukraine.

President Donald Trump has faced a major political setback after Democrats won control of both chambers of Congress. The result could make it more difficult for Trump to carry out some of his plans, while raising questions about the future of US involvement in international conflicts.

Although the election results give Democrats more power to challenge the president, Trump still has considerable authority over foreign policy. The key question is whether the setback will encourage him to seek diplomatic solutions or push him towards stronger military action.

Iran: More pressure for talks or further conflict?

Iran has welcomed the Republican losses, seeing the election results as a sign of growing opposition among American voters to the war.

Trump has acknowledged that the conflict with Iran and the rising cost of living played a role in the Republicans' poor performance. Vice President JD Vance also blamed the war for the election defeat.

However, Iran does not expect an immediate change in US policy. Iranian leaders have warned that they are prepared for further conflict if the US launches new attacks.

At the same time, diplomatic efforts are continuing. Qatar is playing a role in helping Washington and Tehran exchange proposals to restart negotiations.

Experts believe Trump may now face pressure to reach an agreement with Iran to show progress and avoid further political damage. A limited agreement on the Strait of Hormuz could be an easier first step than a wider deal between the two countries.

Israel: US support could face major changes

The election results have raised serious concerns in Israel about the future of its relationship with the United States.

Support for Israel has been declining among both Democrats and some Republicans, particularly because of the high number of deaths in Gaza and the continuing conflict in the region.

Trump's announcement that the US would stop military aid to Israel has added to these concerns. The Democratic victory in both chambers of Congress could further increase pressure on Israel.

Former Israeli officials have warned that changes could go beyond military aid. Arms sales, intelligence cooperation and joint defence projects, including the Iron Dome missile defence system, could also face challenges.

Israeli Prime Minister Benjamin Netanyahu is also facing political difficulties at home after losing his parliamentary majority. Critics have called for a change in leadership and a new approach to relations with the international community.

The developments suggest that the long-standing close relationship between Washington and Tel Aviv could face a difficult period.

Ukraine: Hope for stronger US support

For Ukraine, the Republican election setback could bring some hope for a change in US policy towards its war with Russia.

Ukrainian President Volodymyr Zelensky has had a difficult relationship with Trump, who has repeatedly pressured Kyiv to accept terms to end the war. Ukraine has also faced uncertainty over American military support and intelligence cooperation.

The Democratic victory could give Ukraine more support in Congress, particularly on military assistance and its defence against Russian attacks.

However, Ukraine cannot depend entirely on a change in US policy. Trump remains president and continues to have significant influence over decisions on military aid and relations with Russia.

There are also concerns that Russian President Vladimir Putin may try to take advantage of the political situation in Washington to make further gains in Ukraine before US political priorities change again.

A difficult period ahead for US foreign policy

The midterm results have created new challenges for Trump and could influence America's approach to some of the world's most important conflicts.

Iran may see an opportunity for a diplomatic agreement, Israel could face greater pressure from Washington, and Ukraine may hope for stronger support from the US Congress.

However, the election results do not automatically mean a change in American foreign policy. Much will depend on Trump's decisions in the coming months and how far Democrats use their new power to influence his administration.