Marinus Willett City to the state convention where he and other anti-federalist were defeated. As late as 1790, he was still trying to repeal or amend the United States Constitution. In 1790 he was sent by President Washington to the Creek Indians to persuade their leader Alexander McGillivray to continue treaty efforts. Willett was successful and a delegation of Creeks under McGillvray visited New York City, then capital of the United States, resulting in the Treaty of New York (1790). In 1791, he was appointed by Clinton to another term as the Sheriff of New York County, New York. Willett acquired considerable
Don Willett litigation, including efforts to protect the Ten Commandments monument on the Texas Capitol grounds and also the Pledge of Allegiance when it was challenged for including the words "under God." Willett was serving in this Deputy Attorney General position when he was appointed to the Texas Supreme Court in August 2005. Willett sits on the advisory board for the Honors College at his "alma mater", Baylor University, which named Willett a Distinguished Young Alumnus in 2005. He also served on the national steering committee for Baylor's proposal to secure the Bush Presidential Library. Willett is on the national advisory board