Since 1999, the monthly town board meetings in Greece, New York, have opened with a roll call, a recitation of the Pledge of Allegiance, and a prayer given by clergy selected from the congregations listed in a local directory. While the prayer program is open to all creeds, nearly all of the local congregations are Christian; thus, nearly all of the participating prayer givers have been too. Respondents, citizens who attend meetings to speak on local issues, filed suit, alleging that the town violated the First Amendment’s Establishment Clause by preferring Christians over other prayer givers and by sponsoring sectarian...