Judge Reagan graduated from Bradley University in Peoria, Illinois in 1976 and St. Louis University School of Law in 1980. He engaged in a general law practice with emphasis on civil and criminal litigation. Judge Reagan was a frequent lecturer at legal symposia. He has authored legal related papers and book chapters and is a former Adjunct Assistant Professor of Law at St. Louis University.
In 1990, the National Board of Trial Advocacy certified him as a Civil Trial Specialist.
In 1995, the Illinois Supreme Court appointed Judge Reagan Commissioner for the Attorney Registration and Disciplinary Commission where he, along with six others, administered the attorney registration and disciplinary system for the state’s 70,000+ lawyers.
Judge Reagan was President of the Illinois Trial Lawyers Association from 1999 to 2000.
Judge Reagan was nominated by the President on May 11, 2000 and voted out of the Senate Judiciary Committee on July 27, 2000. The full Senate confirmed Judge Reagan on October 3, 2000. He took the oath of office of United States District Judge on October 23, 2000.