Did the Whigs oppose slavery?
Thereof, why did the Whigs oppose Jackson?
John Tyler was a Democrat who became a Whig out of dislike for President Andrew Jackson. The Whig Party developed out of opposition to Jackson's policies, including his bank policy. In an effort to break up the Second Bank of the United States, Jackson in 1833 made federal deposits in a number of state banks.
Also, who voted for the Whigs?
Catholics overwhelmingly voted Democrat, while Protestants were split between the two parties. Recent Irish and German immigrants generally supported the Democrats, but recent immigrants from England, Scotland, and Wales tended to support the Whigs.
The Whigs were a political faction and then a political party in the parliaments of England, Scotland, Great Britain, Ireland and the United Kingdom. Between the 1680s and 1850s, they contested power with their rivals, the Tories. The Whigs' origin lay in constitutional monarchism and opposition to absolute monarchy.