U.S. lawmakers weigh congressional move to fight Islamic State: Ryan

House Majority Leader Kevin McCarthy and House Foreign Affairs Committee Chairman Ed Royce are "beginning the process of gathering ideas and having listening sessions with our members about whether and how we could do an AUMF (Authorization to Use Military Force) on ISIS," Ryan said at a news briefing, using an acronym for the militant group.

(Reporting by Richard Cowan, Susan Cornwell and Susan Heavey; Editing by Doina Chiacu)