In 1981, Geisler testified in "the Scopes II trial" (McLean v. Arkansas Board of Education). Duane Gish, a creationist, remarked: "Geisler was. . . the lead witness for the creationist side and one of its most brilliant witnesses. His testimony, in my view (I was present during the entire trial), effectively demolished the most important thrust of the case by the ACLU. Unfortunately, in my opinion, no testimony, and no effort by any team of lawyers, no matter how brilliant, could have won the case for the creationist side."