Washington (CNN) During a meeting in the Oval Office Wednesday, Turkish President Recep Tayyip Erdoğan pulled out an iPad to show a small group of Republican senators and President Donald Trump a propaganda video casting the Kurds in a negative light, according to a GOP source familiar with the situation.

The source called the video, which was first reported by Axios, "surreal" and "straight propaganda."

GOP Sens. Lindsey Graham, Jim Risch, Ted Cruz, Joni Ernst and Rick Scott all attended the candid and at times tense meeting, which lasted about 90 minutes. Reporters were briefly invited in to see the lawmakers raise their foreign policy concerns with Erdogan -- specifically addressing the sale of Russian weapons to Turkey and Turkey's conflicts with the Kurds.

The senators "did most of the talking" with Trump "playing traffic cop," the GOP source said. The senators warned that Turkey will face US sanctions unless it reverses course on the purchase of a Russian missile defense system, a senior administration official and two sources familiar with the matter said.

Trump invited the five senators -- all of whom have been vocal critics' of Turkey's acquisition of the S-400 air defense missile system -- in order to show Erdoğan the strong opposition he faces, a senior administration official said. It was also in part an effort by to show Erdoğan that his hands are tied on the sanctions issue.

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