(220701) -- WASHINGTON, July 1, 2022 (Xinhua) -- File photo taken on April 8, 2022 shows Ketanji Brown Jackson (C), U.S. President Joe Biden (L) and Vice President Kamala Harris attending an event marking the Senate confirmation of Jackson for the Supreme Court at the South Lawn of the White House in Washington, D.C., the United States. Ketanji Brown Jackson was sworn in at noon on Thursday to formally become an associate justice of the U.S. Supreme Court, making her the nation's first African American woman to serve in that role. (Xinhua/Liu Jie)