Impeachment proceedings against sitting president Bill Clinton were held from January 7 - February 12, 1999, during the first session of the 106th Congress. Clinton, who was involved in sex scandal involving a White House intern, was accused with obstruction of justice and perjury. U.S. Supreme Court Chief Justice William H. Rehnquist (1924-2005) presided over the Senate portion of the process. Of the three U.S. Presidents ever impeached—Andrew Johnson, Donald Trump, and Bill Clinton—all were acquitted of charges.