The Trump administration faced growing calls Thursday for a forceful response to violence by Turkish presidential guards on American soil, who were briefly detained this week but then set free. The unseemly incident added to U.S.-Turkish tensions that are being compounded by a growing spat over U.S. war strategy against the Islamic State group in Syria.

The United States said it summoned Turkey's ambassador to the State Department, where the No. 2-ranked U.S. diplomat raised concerns about the security detail for President Recep Tayyip Erdogan's visit to Washington, after they were captured on video violently breaking up a protest. U.S. lawmakers demanded stronger action. The government should "throw their ambassador the hell out" of the country, Republican Sen. John McCain said.