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

Why was the united states motivated to establish the open door policy? a. the policy guaranteed american commerce with china. b. the policy supported the chinese nationalist cause. c. the policy led to a gain of american colonies in asia. d. the policy claimed damages from the chinese.