Identify and analyze the arguments over slavery in the New Western Territories history homework help

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Identify and analyze the arguments over slavery in the New Western Territories after the Mexican War (1846–1848). How did northern and southern Democrats differ over this issue? Then describe the presidential election of 1848. Identify the key parties and candidates. Analyze how the results of this election set the stage for a reconfiguration of American politics that ultimately led to Civil War. Be sure to use enough details to support your answer.