Improve U.S. - Soviet relations
because they were forced to settle on the east by the American and European settlers this happened in the 1600s.
yes because it say it right after the 4th sentence Explanation:
During the 1850s the decline and demise of the whig party allowed the birth and development of the REPUBLICAN PARTY, which grew in power in the northern states. The whig party was politically active in 1850s, the party fell due to internal tension related to the expansion of slavery to the territories of the United States. The whig party was succeeded by the Republican Party.
