Transcript for Trump responds to House vote on impeachment inquiry
and the impeachment fight. The president making his first public statements about that major house vote this week. ABC's Kyra Phillips has more from the white house. Good morning, Kyra. Reporter: Good morning, Eva. Well, president trump's press secretary Stefanie Grisham made news saying the white house is preparing for house Democrats to impeach the president. When I questioned president trump last evening he told me the Democrats have no grounds on which to impeach him. The impeachment inquiry of president trump is on. But if you ask him about it, he says, it's not going anywhere. You can't impeach a president who did nothing wrong. Reporter: House impeachment investigators now moving forward. Calling on witnesses who may have information on that call to Ukraine. The gentleman that came in yesterday, Morrison, he was terrific. He was supposed to be their primary witness. He was terrific. And he said he didn't see anything wrong with it. Reporter: Tim Morrison, the president's former top adviser on Russia and Europe testified in his opening statement that when it came to that phone call about Ukraine, the rough transcript accurately and completely reflects the substance of the call. But adding "I want to be clear. I was not concerned that anything illegal was discussed." House speaker Nancy Pelosi sees it differently. We took an oath to protect and defend our democracy and that is what he has made an assault on. Reporter: All but two house Democrats voting to formally approve the impeachment inquiry setting the stage and the rules for open hearings now. Now there will be public hearings. Do you feel that will help you? I think it helps us. Look, my poll numbers are very high. On the swing states when it comes to the impeachment word it's an ugly word to me. Very ugly word. They don't want to do it. Democrats don't want to do it. Reporter: Pelosi says she expects public hearings to begin this month, just one part of the formal process in the investigation to determine whether trump used his presidential power to pressure Ukraine to dig up dirt on political rivals in exchange for releasing military aid. This is not about his personality, his policies, that's for the election. This is about the constitution. This is about defending our democracy. Reporter: So where does this go from here? This is now a formal impeachment investigation and you will see a significant shift now from what was largely behind closed doors and secret work to a much more public legal and political process. Eva? I'll take it from here, Kyra, thank you very much. This story likely to dominate the news for weeks if not months.
This transcript has been automatically generated and may not be 100% accurate.