Final answer:
The primary goal of the new Republican Party in 1854 was to stop the spread of slavery into the western territories.
Step-by-step explanation:
The primary goal of the new Republican Party in 1854 was to stop the spread of slavery into the western territories. The party was strongly opposed to the expansion of slavery and believed that it should be contained to the states where it already existed. This position was driven by a variety of factors, including moral objections to slavery and concerns about the economic and political consequences of its expansion.
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