title: Clinton 'happy' to join extra debate if other candidates agree: spokeswoman
text: (Reuters) - U.S. Democratic presidential candidate Hillary Clinton would be “happy” to participate in an additional debate beyond those already planned if the other candidates agree, a spokeswoman for Clinton said on Tuesday. Clinton is campaigning in Iowa ahead of state caucuses there on Monday that mark the first contest in the nomination race for the Nov. 8 presidential election.  (Reporting by Amanda Becker in Chicago; Editing by Sandra Maler) SAP is the sponsor of this coverage which is independently produced by the staff of Reuters News Agency.