president trump had his predecessor on his mind again today at the white house. >> it's a little bit like president obama, when he left. people liked him. when he was here people didn't like him so much. that's the way life goes. that's human nature. the fact is, obamacare is a disaster. >> reporter: he was talking health care, not his explosive allegation of president obama spying on trump tower. asked about that, mr. trump fell silent. >> will your department comply with the intelligence committee's request to provide -- >> reporter: the department of justice had until today to turn over any evidence, if any exists, to the house and senate intelligence committees for their investigation into any contacts between russian operatives and the trump campaign. the white house would not say whether any evidence would be produced, yet the explanation has evolved over the last nine days and did so again today. >> i think there are two things that are important about what he said. recognizing that it's the -- he