dossier, fusion gps, also worked with officials at the fbi, justice department, and intel community. new emails and memos show the former top obama justice department official bruce ohrhe was in contact with the former british spy, christopher steele, including conversations thatat they had just before the fbi first opened its probe. now, since ohr's wife also was on the payroll of fusion gps, you can understand by the trump legal team tonight has some questions about those contacts, mark. >> mark: indeed, ed. thanks. joe digenova is a former u.s. attorney for the district of columbia. he joins us. joe, mueller is telling the president, you can volunteer to do this interview, or otherwise i will force you into it. is that how it works? >> well, it would work that way ordinarily for a citizen, but the president is a very special person under the constitution and under investigations like this. the president could very well agree to a voluntary interview. i would not recommend that he do so, and i don't think that he should.