James Petigru

James Louis Petigru (May 10, 1789 – March 9, 1863) was an American lawyer, politician, and jurist in South Carolina. He is best known for his service as the Attorney General of South Carolina, his juridical work that played a key role in the recodification of the state's law code. He was also known for opposing nullification and, in 1860, state secession.

Petigru graduated from South Carolina College in 1809. He was admitted to the South Carolina bar in 1812. In 1816, he was elected as the solicitor of Abbeville County, South Carolina. He became the Attorney General of South Carolina in 1822. In 1830, after having lost a bid for a seat in the South Carolina Senate, he was elected to fill a vacant seat in the South Carolina House of Representatives. He was the leader of the anti-nullificationists in that body.

He also acted as lead attorney in the case of M'Cready v. Hunt, focusing on test oaths and States Rights, which was brought before the South Carolina Court of Appeals in 1834. The case involved a "test oath" passed by the South Carolina legislature in November 1832, requiring members of the state militia to pledge "faithful and true allegiance" to the State of South Carolina. The law was vague on the underlying and contentious issue of sovereignty, and did not specifically state whether allegiance to the state was superior to allegiance to the federal government. Given tensions of the times, dispute over interpretation of the oath immediately erupted. The "Nullifier" faction asserted that allegiance to the state had precedence over allegiance to the federal government, while "Unionists" asserted that the federal government had primacy over all states.

Eventually, a legal case on the validity of the test oath reached the state Court of Appeals in Columbia. Attorney Robert Barnwell Rhett, of Beaufort, argued for the test oath with the support of state Governor Robert Y. Hayne. In opposition, the Unionist Petigru was joined by business attorney Abram Blanding of Columbia, and Thomas Smith Grimké of Charleston. The June 2nd, 1834 decision from the three judges fell 2 to 1 for the Unionists. "Nullifiers" immediately called for the impeachment of the two jurists. "Nullifier" legislators responded to the decision by calling for a constitutional amendment to legalize the test oath and assert the primacy of allegiance to South Carolina. (Ford, pp. 148–149)

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