Which Mississippi politicians in the 1850s seemed most favor of secessin?

In the 1850s, Mississippi politicians such as Governor John J. Pettus and Senator Jefferson Davis emerged as strong advocates for secession. Pettus, in particular, was a vocal supporter of the Southern cause and believed that secession was necessary to protect the institution of slavery and states' rights. Davis, who would later become the President of the Confederate States, also championed the secessionist movement in the state. Their leadership reflected the growing tensions in the South leading up to the Civil War.