Why did the know nothing party want to prevent immigrants from voting

They believed immigrants were undermining American society.

Explanation:

The Know Nothing Party (officially known as the Native American Party, and then the American Party) was a political party that existed in the United States in the mid-1850s. This party was anti-Catholic and anti-immigration, and generally displayed a dislike for immigrants. Because of the secrecy of the party, members generally answered with the phrase "I know nothing," leading to the party's nickname.

all of the following apply except for (a. excessive credit on real estate resulting in defaulted loans.

in 1819, panic swept the country due,in part, to the rapid expansion of american manufacturing during the war of 1812 and the distress caused by the post-war british competition. the rapid expansion of american farming was another factor.

explanation: