FILE PHOTO: U.S. President Donald Trump and Turkey's President Tayyip Erdogan attend a multilateral meeting during the 80th United Nations General Assembly, in New York City, New York, U.S., September 23, 2025. REUTERS/Al Drago/ File Photo

By Mike Stone and Tuvan Gumrukcu

WASHINGTON/ANKARA (Reuters) -U.S. President Donald Trump will host President Tayyip Erdogan at the White House on Thursday, where the Turkish leader hopes to leverage the countries' warmest bilateral ties in years to convince Washington to drop U.S. sanctions and allow it to purchase F-35 fighter jets.

Erdogan's first visit to the White House in about six years comes at a time when Ankara is keen to take advantage of a U.S. administration eager to make deals in return for big-ticket arms and trade agreements.

The administration of former President Joe Biden kept Turkey at arm's length partly over what it saw as the fellow NATO member's close ties with Russia. Under Trump, who views Moscow more favorably and has closer personal ties with Erdogan, Ankara is hoping for a better relationship.

Trump and Erdogan - both seen as increasingly autocratic by their critics at home - had a checkered relationship during the Republican president's first term. But since his return to the White House, their interests have aligned on Syria - source of the biggest bilateral strain in the past - where the U.S. and Turkey now both strongly back the central government.

They remain sharply at odds over U.S. ally Israel's attacks on Gaza, which Ankara calls a genocide - a potential wild card in what are otherwise expected to be friendly and transactional talks in the Oval Office.

In his UN address on Tuesday, Erdogan, who has led Turkey for 22 years, said that "anyone who fails to speak out and take a stand against the barbarity in Gaza shares responsibility for this atrocity".

U.S. Secretary of State Marco Rubio later told Fox News that world leaders, including Erdogan, could "say what they want to say but at the end of the day, when they want something done, they want to come to the White House".

U.S. SANCTIONS BLOCK F-35 SALES

The mood shift has renewed Turkish hopes that Trump and Erdogan, who have exchanged mutual praise, can find a way around U.S. sanctions imposed by Trump himself in 2020 over Turkey's acquisition of Russian S-400 missile defenses.

That, in turn, could pave the way for Ankara to buy Lockheed Martin's advanced F-35 fighter jets, for which it was both a buyer and manufacturer until it was barred over the S-400s.

"Despite expected resistance from U.S. Congress, a green light for Turkish acquisition of F-35s is not inconceivable, provided the political will is there on both sides and diplomats are allowed to hammer out a framework that addresses all the known issues," said Timur Soylemez, a former Turkish ambassador with experience in Turkey-U.S. relations.

Trump said ahead of the meeting he expected F-35 talks "to conclude positively".

Erdogan has said the defense industry, including the topic of F-35s and ongoing negotiations over 40 F-16 jets Ankara also wants, would be a focus of the meeting, along with regional wars, energy and trade.

A U.S. official said Washington had in recent days drafted a statement of intent - a document used to facilitate talks - for several sales to Turkey, including the new F-16s that would bolster its existing fleet.

Turkey asked for advanced equipment and modifications on the F-16s in their order, making the jets cost more than a standard F-35, the official said. But F-35s were omitted from the draft statement because the U.S. cannot legally sell them while Turkey has the S-400s, the person added.

Turkish government officials did not immediately comment on the F-16 costs.

DEAL ON BOEING PLANES ALSO ON AGENDA

Turkey, NATO's second-largest army, wants to ramp up air power to counter what it sees as growing threats in the Middle East, Eastern Mediterranean and the Black Sea, where it neighbours Russia and Ukraine.

In addition to the F-16s and F-35s, it also wants to procure 40 Eurofighter Typhoons - irking regional U.S. allies Israel and Greece.

At the meeting, Trump is expected to highlight a Turkish agreement to buy more than 200 Boeing Co aircraft, for which Turkish Airlines is negotiating. The U.S. official told Reuters the talks included 787 and 737 jetliners, and about $10 billion in GE aircraft engines.

(Reporting by Tuvan Gumrukcu in Ankara, Jonathan Spicer in Istanbul, and Mike Stone in Washington; Editing by Humeyra Pamuk and Deepa Babington)