President Erdogan is also expected to ask release of Reza Zarrab, the Turkish-Iranian businessman, and Mehmet Hakan Atilla, the deputy general manager of the Turkish state owned Halk Bank, who are both on trial in the U.S. for violating sanctions on Iran.

Zarrap, who has both Iranian and Turkish citizenship, is accused of money laundering and breaching embargoes. The Turkish government asks Zarrab to be given to Turkey since he is a citizen.

Analysts are not hopeful for remarkable progress from the Erdogan-Trump meeting.

"All the signs are that this will not be an easy conversation. Ankara has set the stakes so high with regard to its demands that it has left itself very little room for diplomatic maneuvering," according to Semih Idiz, a columnist from Hurriyet Daily News.

"Washington, on the other hand, has made it amply clear that Turkey's demands are unlikely to be met because the U.S. has firm positions, or obstacles it can't overcome, that make it very hard to please Ankara," Idiz said.

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