- ›› Coverage Organizations : Know-Nothing Party
As late as 1850, the two-party system seemed healthy. Democrats and Whigs drew strength in all parts of the country. Then, in the early 1850s, the two-party system began to disintegrate in response to massive foreign immigration. By 1856 the Whig party had collapsed and been replaced by a new sectional party, the Republicans.Between 1846 and 1855, more than three million foreigners arrived in America. In cities such as Chicago, Milwaukee, New York, and St. Louis immigrants actually outnumbered native-born citizens. Opponents of...