Harrison’s election closed a decade that had brought the common man and democracy to the forefront of American politics. Economic transformations loom large in explaining the fast-paced changes of the 1830s. Transportation advances put goods and people in circulation, augmenting urban growth and helping to create a national culture, and water-powered manufacturing began to change the face of wage labor. Trade and banking mushroomed, and western land once occupied by Indians was auctioned off in a landslide of sales. Two periods of economic downturn—including the panic of 1819 and the panics of 1837 and 1839—offered sobering lessons about speculative fever.

Andrew Jackson symbolized this age of opportunity for many. His fame as an aggressive general, Indian fighter, champion of the common man, and defender of slavery attracted growing numbers of voters to the emergent Democratic Party, which championed personal liberty, free competition, and egalitarian opportunity for all white men.

Jackson’s constituency was challenged by a small but vocal segment of the population troubled by serious moral problems that Jacksonians preferred to ignore. Inspired by the Second Great Awakening, reformers targeted personal vices (illicit sex and intemperance) and social problems (prostitution, poverty, and slavery) and joined forces with evangelicals and wealthy lawyers and merchants (North and South) who appreciated a national bank and protective tariffs. The Whig Party was the party of activist moralism and state-sponsored entrepreneurship. Whig voters were, of course, male, but thousands of reform-minded women broke new ground by signing political petitions on the issues of Indian removal and slavery. A few exceptional women, like Sarah and Angelina Grimké, captured the national limelight by offering powerful testimony against slavery and in the process pioneered new pathways for women to contribute a moral voice to politics.

National politics in the 1830s were more divisive than at any time since the 1790s. The new party system of Democrats and Whigs reached far deeper into the electorate than had the Federalists and Republicans. Stagecoaches and steamboats carried newspapers from the cities to the backwoods, politicizing voters and creating party loyalty. Politics acquired immediacy and excitement, causing nearly four out of five white men to cast ballots in 1840.

High rates of voter participation would continue into the 1840s and 1850s. Unprecedented urban growth, westward expansion, and early industrialism marked those decades, sustaining the Democrat-Whig split in the electorate. But critiques of slavery, concerns for free labor, and an emerging protest against women’s second-class citizenship complicated the political scene of the 1840s, leading to third-party political movements. One of these third parties, called the Republican Party, would achieve dominance in 1860 with the election of an Illinois lawyer, Abraham Lincoln, to the presidency.