statement comes less than a day of after his own daughter, ivanka trump, came under scrutiny for her use of private e-mails to do government business. >> i'm sure the media will have a field day with it today. >> tell you what. for what she's done, they should lock her up. >> reporter: hypocritical, because it's a reminder that her father savaged hillary clinton for her private e-mail use. >> if i win, i am going to instruct my attorney general to get a special prosecutor to look into your situation. because there has never been so many lies, so much deception. >> reporter: a source close to ivanka brushed off a story in a statement saying, this is a 14-month-old story. there was nothing there then and there is nothing there now. the president insists his daughter did nothing wrong. >> they weren't deleted like hillary clinton, who deleted 33 -- she wasn't doing anything to hide her e-mails. there was no deletion, there was no nothing. what it is is a false story.