During the 1820s, a decade that historians have called "The Age of the Common Man," voting increased because many states removed property requirements for voting. These changes meant that most white men could now vote, regardless of their economic status. In addition, several northern states allowed freed African-American men to vote. Most African-Americans and all women, however, still could not vote. Voting procedures were also changed so that voting by voice was replaced by paper ballots; these changes encouraged people to vote the way they wanted and to feel less pressured to vote in the way their social superiors did. These changes in the electorate helped Andrew Jackson win the Presidency in 1828.

The Nullification Crisis of 1832 involved the refusal of South Carolina to pay the Tariff of 1832 (and the earlier Tariff of 1828), which they referred to as "The Tariff of Abominations." They objected to a high tariff (a tax on imported goods) that made manufactured goods from Europe very expensive. By stating that they could nullify, or declare void, a federal law, South Carolina set a dangerous precedent (which had been used earlier by New Englanders during the Hartford Convention) that southern states would use later during the outbreak of the Civil War. However, Andrew Jackson passed a Force Bill through Congress in 1833 that authorized the use of force to collect the tariff, and a compromise was reached that lowered the tariff. As a result, South Carolina, though backed by Jackson's Vice-President, John Calhoun, relented and paid the tariff. 

The main reason for the increase in voters was the fact that suffrage was expanded.  Many more people were allowed to vote in 1828 than in 1824.  This was part of the changes of the Jacksonian Era.

The nullification crisis came out of the Tariff of 1828.  The South disliked the tariff very much.  They felt it hurt them and helped only the North.  So they tried to nullify it -- to say it was illegal and they would not follow it.  So then there was a crisis about what to do if part of the country said that.