Wardle holds the Bruce C. Hafen Professorship at the J. Reuben Clark Law School. He has testified before congressional committees in favor of the Federal Marriage Amendment and the Defense of Marriage Act. Wardle also opposes allowing same-sex couples to adopt children.
As a representative of The Church of Jesus Christ of Latter-day Saints (LDS Church), Wardle spoke at the 1997 World Congress of Families in Prague and at the 2007 World Congress of Families in Warsaw on the same general topic.
- "CHurch Delegates Attend World Congress of Families", Ensign, June 1997, p. 75.
- "Archived copy". Archived from the original on 2005-03-04. Retrieved 2008-08-23.
- ISFL web-site
- "Faculty Profiles". www.law2.byu.edu. Retrieved 2017-06-21.