As president, Taylor kept his distance from Congress and his cabinet, even though partisan tensions threatened to divide the Union. Debate over the status of slavery in the Mexican Cession dominated the political agenda and led to threats of secession from Southerners. Despite being a Southerner and a slaveholder himself, Taylor did not push for the expansion of slavery, and sought sectional harmony above all other concerns. To avoid the issue of slavery, he urged settlers in New Mexico and California to bypass the territorial stage and draft constitutions for statehood, setting the stage for the Compromise of 1850. Taylor died suddenly of a stomach disease on July 9, 1850, with his administration having accomplished little aside from the ratification of the Clayton–Bulwer Treaty. Fillmore served the remainder of his term. Historians and scholars have ranked Taylor in the bottom quartile of U.S. presidents, owing in part to his short term of office (16 months), and he has been described as 'more a forgettable president than a failed one.'