U.S. President Trump comments on Fed investigation: investigation has not been withdrawn

On April 26, U.S. President Trump commented on the Federal Reserve investigation: the investigation has not been withdrawn. The U.S. President talked about Powell: What I want to understand is, why did a building that I could build for US$25 million cost as much as US$4 billion? It was a major issue, and he was in charge of it at the time-and we will definitely get to the bottom of it.