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Greiner Civil Procedure Version 02

Louisville & Nashville Railroad v. Mottley

Osborn was about the scope of the "arising under" power under the Constitution, specifically Article III, § 2, clause 1.

This case, in contrast, is about the scope of the "arising under" grant of power in a federal statute, specifically 28 U.S.C. § 1331.  How broad is that statutory grant of power?  What must a case have in it for it to "arise under" federal law?  For purposes of the statute, where is the dividing line between cases that do and do not "arise under" federal law?  Is the statutory line the same as Chief Justice Marshall's view of the line you saw in Osborn, the one that delimits the "arising under" power for purposes of the U.S. Constitution?  If not, which one is broader?