How did john brown’s raid impact the national issue of slavery

John Brown's raid impacted the national issue of slavery by helping towards the civil war.  He and his sons fought against slavery by killing the pro-slavery farmers with a broadsword.  This fight was known as "Bleeding Kansas". It ended up erupting into a low-scale civil war, which no doubt, advanced the cause of the full-blown Civil War between the North and the South. Pro-Slavery settlers and anti-slavery settlers both settled in Kansas at the same time. So it was inevitable that the two sides would clash. 

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