In the 1844 election, the phrase “Fifty-Four Forty or Fight!” referred to the number of representatives in Congress.
growing US economy in the West.
desired boundary line in the North.
threat of war with American Indians.

a. favoring native born americans over immigrants.

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,

c. the passage of the fifteenth amendment