If Zachary Taylor lived on?

[President Johnson]

People often discuss what would have happened if Abe Lincoln, FDR and Jack Kennedy lived on, but what about the 12th President, Zachary Taylor, who died in 1850? Thinking about him living on poses some interesting questions: Would the civil war have started ten years earlier? He was opposed the Compromise of 1850, which would not have been enacted into law if Taylor didn't die. Taylor opposed an expansion of slavery even though he was a slave owner; and he even threatened to hang southerners trying to seccede. Would have have won reelection in 1852? What would have happened to the Whig Party?

[True Federalist (진정한 연방 주의자)]

Taylor's ideas of what to do with the Mexican Cession were uniquely his own and never gained traction. Had he lived, he wouldn't have been renominated, let alone reelected in 1852 and that election would have fought over the issue of what to do with the Mexican Cession. That would likely have split apart the Whig Party as happened in real life.

[Amenhotep Bakari-Sellers]

Samuel Chase would have been elected president instead of Lincoln and would have not been assassinated and perhaps Jim Crow, would have not progressed in the Deep South.  As a result, the moderate Whig Party would have been dominant until WWII and Democrats would have taken the flag of Civil Rights in 1964. Poll taxes and women's rights movement and lynching would have still been allowed. 

[Southern Senator North Carolina Yankee]

Taylor's ideas of what to do with the Mexican Cession were uniquely his own and never gained traction. Had he lived, he wouldn't have been renominated, let alone reelected in 1852 and that election would have fought over the issue of what to do with the Mexican Cession. That would likely have split apart the Whig Party as happened in real life.

The Whigs routinely got themselves into trouble because their Presidents/nominees were picked bc of their personal popularity and not adherence to their political principles. Considering how divided the party was this was probably their only real option though.

[Orser67]

There's a non-zero chance that him living on could have led to an earlier Civil War. Though a slaveholder himself, by the time of his death his strongest ally in Congress was William Seward, who was generally considered to the leader of the anti-slavery wing of the Whig Party. Taylor's key policy was that California and New Mexico should immediately gain statehood without regard to the status of slavery. This angered Southerners since both were widely expected to become free states, and also because his stance denied the expansive land claims of Texas, which was a slave state.

Irl his policies in part led to the Nashville Convention, which represented the first time since 1815 that major state leaders seriously contemplated secession. A mini-realignment occurred in the South for the 1850 and 1851 election cycles, but the victory of pro-Compromise Democrats and Whigs temporarily ended talk of secession.

If Taylor had lived, its certainly possible that no compromise would have been reached, and that Southern states would have begun to secede during his presidency. Alternatively, the absence of the compromise could have led to further sectional polarization and the outbreak of civil war after the 1852 election.