Whether federal or state law governs the characterization of a § 1983 claim for purposes of selecting a borrowed state statute of limitations.
Holding
Federal law governs the characterization of a § 1983 claim; state law supplies the length of the limitations period and related rules only after the federal characterization is made.
Reasoning
Section 1983 contains no limitations period, so 42 U.S.C. § 1988 directs courts to borrow suitable state law unless it is inconsistent with federal law. But § 1988 first directs courts to use federal law where suitable. The nature of a federal cause of action derives from its elements and Congress's purpose in creating it, both of which are questions of federal law.
State law remains important in the borrowing process, but its role is limited. States ordinarily provide the period's duration, as well as closely connected tolling and application rules. They do not have the conclusive authority to define the essential character of a federal civil-rights remedy.
Treating characterization as a federal question also serves the federal interests embedded in § 1988. Section 1983 is a national remedy, and a federal characterization promotes more predictable and easily applied limitations rules while preventing state policy choices from controlling the definition of the federal right. Accordingly, the Tenth Circuit was not bound by the New Mexico Supreme Court's contrary characterization in DeVargas.