because of the ongoing Russian investigation. He then went on to say he just wanted somebody who was competent (Comey obviously wasn't), and he wanted the investigation done properly.
So within that interview, Trump specifically addressed the continuation of the investigation.
https://www.cnn.com/2017/05/11/politics/transcript-donald-trump-nbc-news/index.htmlEdited by Sal at 11:06:32 on 04/26/19