|Former Associate Justice of the U.S. Supreme Court|
From: April 22, 1837 – July 19, 1852
|Nominator||Martin Van Buren|
|Successor||John A. Campbell|
|U.S. Senator from Alabama|
From: November 27, 1826 –March 4, 1831
John McKinley (May 1, 1780 – July 19, 1852) was an Associate Justice of the Supreme Court of the United States. In 15 years on the Court he wrote only 20 opinions. He dissented in the case Bank of Augusta v. Earle - a case where the 8-1 majority overruled an opinion McKinley had written on the circuit court; McKinley believed states could limit business activities to businesses chartered within that state.