In one meeting, we told President Trump’s envoys how important Jerusalem is to Palestine. While we acknowledge and respect its deep connection to the three major monotheistic religions, the city is also the heart of our people — Muslims and Christians — as a nation. So we support making Jerusalem an open city with free access for all, and a sovereign Palestinian capital in East Jerusalem. Instead, President Trump decided last month to take Jerusalem “off the table” — a step that encouraged Israelis to pursue policies in occupied East Jerusalem that seek to forcibly transfer the Palestinian population out of the city.

Recognizing Jerusalem as Israel’s capital violated the United Nations Security Council’s Resolution 478 and general charter prohibitions on the acquisition of territory by force; it also contradicted a declaration by the United States in 1991 that the final status of Jerusalem should be decided by negotiations, and that the United States doesn’t recognize Israel’s annexation of East Jerusalem or the extension of its municipal boundaries.

Now President Trump is engaged in another power play — to take the issue of refugees off the table. He is doing that by drastically reducing American funding of the relief agency known as UNRWA, a United Nations organization not tied to the P.L.O. that provides desperately needed services to millions of Palestinian refugees. What will be next? The “ultimate deal” promised by President Trump has been transformed into the “ultimatum deal.”

When President Trump decided to recognize Jerusalem as Israel’s capital, he put the Palestinians in an impossible position and joined Israel in a “blame game.” But this is not a game to us. This is about our very existence and upholding international law. The policy falls so far outside the international legal and political consensus that it has made the United States ineligible to play the role of sole broker in the Middle East.

Palestine has been a failed test for the international community. The world must start now to hold Israel accountable when it violates international law, and to create an international umbrella for negotiations. Since President Trump’s Jerusalem announcement, we have met with leaders in countries that could help seek new peace — Russia, China, Japan, South Africa and India, alongside members of the European Union. Next Tuesday, President Abbas will address the Security Council to present a vision of peace. And we are planning to move toward national elections in which all Palestinians, including our diaspora, can take part, with the goals of better representation, more support for our refugees and strengthening our people’s steadfastness under occupation.

President Trump, for the wrong reasons, has put the issue of Palestine back on the international agenda. If his administration’s inability to be an honest broker opens the way for other parties to become mediators, Palestine can engage in meaningful discussions on a just and final peace. This must begin with a time frame for ending the Israeli occupation and establishing a sovereign Palestinian state on the 1967 border, with East Jerusalem as its capital — a proposal offered and reaffirmed often by the Arab League. Palestinians would attain their inalienable rights, and Israel would enjoy normal relations with the region.

Only such an international effort can address the unequal power balances, uphold international law and present a clear future of hope, freedom, justice and peace.