Sentence:  She is vacationing at the Kennedy summer home in Hyannis Port , Mass. , and in his welcoming remarks , the President said he was <WSD>representing</WSD> her . 
Meaning of the word marked with <WSD> tags:  be a delegate or spokesperson for; represent somebody's interest or be a proxy or substitute for, as of politicians and office holders representing their constituents, or of a tenant representing other tenants in a housing dispute