BAGHDAD - Iraq’s parliament will vote Wednesday on the proposed Iraq-U.S. security agreement that would allow American troops to stay in Iraq for three more years, the legislature’s speaker said.

Mahmoud al-Mashhadani made the announcement at the end of a six-hour debate on the agreement in which at least two dozen lawmakers spoke. He said a vote could be held earlier if the country’s main political groups reached agreement on the deal earlier than Wednesday.