Why did texas delegates walk out of the democratic party convention in april 1860?

The Democratic party met in April 1860, in Charleston, South Carolina. The convention body was split between Northerners, who supported popular sovereignty (the ability of a state to decide itself whether to allow slavery or not,) and southerners, who wanted the Democratic party to defend the right to hold slaves. The convention refused the Southern demand and the Southern delegates walked out.
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Enlightenment - era of philosophical thought characterized by a strong empahsis on rationality and liberalism.

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