Katyal argues that one can adhere to originalism in the context of judicial interpretation and, nevertheless, believe in a broader style of interpretation for the legislature. He illustrates the point with three examples--the roles of history, precedent, and moral philosophy--in discussing the case of Pres Bill Clinton's impeachment.
Neal Kumar Katyal,
Impeachment as Congressional Constitutional Interpretation,
63 Law and Contemporary Problems
Available at: http://scholarship.law.duke.edu/lcp/vol63/iss1/7