Lincoln couldn't actually get much done either against that nutty Congress. There was a reason why he had to resort to pocket veto chicanery to kill the Wade Davis Bill
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We are thought, and reality, and concept, and the unimaginable
The Supreme Court never ruled on secession prior to the Civil War. Though it's actually not clear whether the Supreme Court would have jurisdiction over the question- or rather it wasn't clear prior to the Civil War.
It's one area in which the founders messed up by making the text of the Constitution ambiguous.
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Congratulations to SuperNiceDog, Guru Winner, who was smart enough to pick your 7 time champion, Link.