Transcript for First lady Melania Trump not holding back

Next tonight here our exclusive interview with first lay day Melania trump. Why she cannot trust some people inside the house. Here is Tom llamas with the exclusive. Reporter: Her husband wields his Twitter feed like a weapon. So it's no wonder Melania trump's focus on cyberbullying has raised questions. What did you see personally, that you thought you wanted to tackle this issue? I could say I'm the most bullied person on -- on the world. Reporter: You think you're the most bullied person in the world? One of them, if you really see what people saying about me. That's why I -- you know, my be best initiative is focusing on social media and online behavior. We need to educate the children. Reporter: In our exclusive interview the first lady not holding back. Telling me the president can't count on some members of his own administration. He's been in office now almost two years. Has he had people that you didn't trust working for him? Yes. Reporter: Did you let him know? I let him know. Reporter: And what did he do? Well, some people, they don't work there anymore. And it's very difficult sometimes because I'm so busy with my office. I don't get involved with west wing. Reporter: Do you think there's still people there that he can't trust? Yes. Reporter: Still working now? Yes. Reporter: The president was asked today in a live TV interview about the first lady's comments and the people in the white house she doesn't trust. His response, we have great people. They're some I'm not in love with, yes, and we will weed them out slowly but surely. Tom, we look forward to this interview. Tom dives into it all with her. Tomorrow night on "20/20" right here on ABC.

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