Despite Jackson's support, the party was far from united behind Johnson. Van Buren preferred Rives as a running mate. In a letter to Jackson, Tennessee Supreme Court justice John Catron doubted that "a lucky random shot, even if it did hit Tecumseh, qualifies a man for the vice presidency". Although Johnson was a "widower", after Chinn's death in 1833, there was still dissension related to Johnson's open relationship with a slave. The 1835 Democratic National Convention, in Baltimore, in May 1835, was held under the two-thirds rule, largely to demonstrate Van Buren's wide popularity. Although Van Buren was nominated unanimously, Johnson barely obtained the necessary two-thirds of the vote. (A motion was made to change the rule, but it obtained only a bare majority, not two-thirds.)