[4CJ]

I like the form of your argument here. Congress, too, had the power to impeach Lincoln for alleged "violations of the Constitution," yet they didn't even think about it. It seems, then, your conclusion must necessarily follow that Lincoln did nothing wrong.

Apples and oranges. Neither President Buchanan nor the federal Congress arrested dissidents. Lincoln had a habit of arresting/interfering with justices of the US Supreme and Circuit courts, state legislators, editors and newspapermen, preachers that refused to pray for him, and anyone else he desired to imprision.

[capitan_refugio]

You implicitly argue that because the Justices of the Supreme Court weren't impeached because of the DSD, it must be because they did nothing wrong. Frankly, at least one of them should have been impeached for judicial misconduct by 1861, but there were more important things on the minds of the wartime Congress.

[fortheDeclaration]

The privilege of the writ of habeas corpus shall not be suspended unless in cases of rebellion or invasion the public safety may require it.

That power is also in the Confederate Consitution.