NEW : Deal would permit non - U.S. troops to stay into Iraq . UK : Agreement would set July 1 withdrawal deadline for those troops . U.K. examining options in case UK Parliament does n't OK deal . The session became so contentious that Parliament 's speaker threatened to resign , lawmakers said . Sadrists oppose any extension of the presence of foreign troops in Iraq .
NEW : Deal would permit non - U.S. troops to stay into Iraq . UK : Agreement would set July 1 withdrawal deadline for those troops . U.K. examining options in case UK Parliament does n't OK deal . Sadrists oppose any extension of the presence of foreign troops in Iraq .