Name the only US president who also served as the Chief Justice of the US Supreme Court ?

Name the only US president who also served as the Chief Justice of the US Supreme Court ?A. Howard Taft
B. Lyndon Johnson
C. Abraham Lincoln
D. None of these

William Howard Taft, the 27th president of the United States, fulfilled a lifelong dream when he was appointed chief justice of the Supreme Court, becoming the only person to have served as both a U.S. chief justice and president.