Sheikh Rachid al-Ghannouchi, the head of Tunisia’s controversial Islamist Ennahda Movement, is scheduled to head a lecture Tuesday afternoon Yale’s Law School, according to the school’s website.

Al-Ghannouchi’s upcoming appearance at the Ivy League school could become controversial given the sheik’s longtime support for radical terror groups and his past calls for Muslims to wage “unceasing war against the Americans.”

Al-Ghannouchi is the leading figure in Tunisia’s previously banned but hugely popular Islamist Ennahda (“Resistance”) political party, which despite being billed as “moderate” by many, has a history of violence inside and outside of Tunisia.

Al-Ghannouchi was a founding trustee and board member of a group that signed onto a notorious 2004 fatwa endorsing the murder of U.S. troops in Iraq and has personally urged the Muslim world to “burn and destroy” U.S. interests across the globe.