Sens. Mike Lee (R-Utah) and Tim Kaine (D-Va.) on Tuesday raised concerns over President Trump's decision on Monday to deploy 1,000 U.S. troops to the Middle East. In a letter, the lawmakers ask Trump him to clarify several aspects of the decision, including where, specifically, the troops will be deployed, what their mission is, and if they'll be used to apply pressure on Iran. They also asked Trump to relay what the "new, specific imminent threat from Iran is." Sens. Jeff Merkley (D-Ore.), Bernie Sanders (I-Vt.), Chris Murphy (D-Conn.), and Rand Paul (R-Ky.) co-signed the letter. They emphasized that Congress has not authorized hostilities against Iran. The State Department said the troops were "for defensive purposes to address air, naval, and ground-based threats in the Middle East."

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