Federal Practice Manual for Legal Aid Attorneys: 2.3.4 The Substantial Federal Element
A case clearly arises under the Constitution for purposes of § 1331 when the plaintiff claims, for example, that a government officer or employee, acting in his or her official capacity, injures the plaintiff by taking an action that violates a provision of the Constitution or by acting pursuant to an unconstitutional statute. The federal question jurisdiction of the district courts also encompasses causes of action created by federal statutes, such as 42 U.S.C.