Acting U.S. attorney general says he has not interfered with Russia probe

Matthew Whitaker (R), acting U.S. attorney general, attends a hearing before U.S. House Judiciary Committee on Capitol Hill in Washington D.C., the United States, on Feb. 8, 2019. Matthew Whitaker said Friday that he has not interfered with the ongoing Russia investigation led by special counsel Robert Mueller. (Xinhua/Liu Jie)