[READINABLUESTATE]

The wrong decision in this case would start a civil war.

The wrong decision in this case WILL start a civil war.

The amendments prop each other up, remove one and they all crumble.

[JeffAtlanta]

The wrong decision in this case would start a civil war.

This decision would only affect the federal government. Unless, the SCOTUS chooses to incorporate the 2nd amendment to apply to the states, then individual states like Illinois are free to do whatever they want regarding gun ownership.