Politicians from both blocs of Iraq’s divided Parliament called for a vote to expel U.S. troops and promised to schedule an extraordinary session to debate the matter.
"Parliament must clearly and urgently express its view about the ongoing American violations of Iraqi sovereignty," said Salam al-Shimiri, a lawmaker loyal to the populist cleric Moqtada al-Sadr.
Trump, making his first presidential visit to troops in a troubled region Wednesday, said he has no plans to withdraw the 5,200 U.S. forces in the country.
Containing foreign influence has become a hot-button issue in a year that saw al-Sadr supporters win the largest share of votes in May elections. Al-Sadr has called for curbing U.S. and Iranian involvement in Iraqi affairs.
U.S. troops are stationed in Iraq as part of the coalition against the Islamic State group. American forces withdrew in 2011 after invading in 2003 but returned in 2014 at the invitation of the Iraqi government to help fight the jihadist group.