Cook County Republican Party Chairman

Sean M. Morrison

Phone: (312) 489-8580

About Chairman Sean M. Morrison

Sean M. Morrison has been a long time active member of the Cook County Republican Party. He was elected by his fellow committeemen in April 2016 to serve as Chairman of the Cook County Republican Party. For the past five years, Sean has served as the Palos Township Republican Committeeman and also holds the position of State Central Committeeman for the 3rd Congressional District.

Sean was appointed Cook County Commissioner of the 17th District on July 22, 2015, to serve out the unexpired term of former commissioner Elizabeth “Liz” Doody Gorman who stepped down to accept a position in the private sector.  Sean brings an extensive business background to the county board and has made fiscal responsibility and innovative reform key pillars of his agenda.

Sean is the CEO and Founder of Morrison Security Corporation, Morrison Security Group & Morrison Investigations, Inc.  Sean has been in the Security Industry since 1986, spending 7 years in the Corporate Retail Loss Prevention field as a District Loss Prevention Manager for two major Retail Establishments with average sales exceeding two billion dollars annually.

Sean has been an owner/partner in the Private Security Industry since 1993, holding the positions of Director of Operations, Vice President of Operations, and President of a Private Security Firm. In 1999, he became the sole owner of Morrison Security.

Sean has served as a board member on several Security Organizations, and has received numerous awards and commendations for Outstanding Service and Expertise in the Security Industry. He’s also appeared as a security industry pundit on NBC, ABC, FOX and WGN news networks.

Sean lives in Palos Park with his wife Lora, a registered nurse, and their two young daughters.


Township Committeemen


Ward Committeemen


State Central Committeemen