Which president, sympathetic to the southern stance within the sectional division, supported the lecompton constitution and the dred scott case?

 The correct answer is :  James Buchanan

Explanation:  He was the 15th president of the United States. His government was criticized for being too passive against the division of the country that caused the civil war., Which he himself predicted for so many years of abolitionism.

the united states has a federal government. the president is the head of the federal government of the united states. however, each state forms its government for administration purposes. the powers of the state governments are exercised within restricted state boundaries. and citizens participate in this government by voting.