Freitas' e-mail to his fellow council members and top city administrators states that he spent a lot of effort exploring the possibility of running for supervisor.
"I was more than happy with the responses I received from family, friends, community, business and labor," he wrote. "But after much consideration, I want to inform all of you at the same time that I have made the decision to run for re-election as Mayor in November, 2008.
"In politics, timing is everything. Due to personal, professional and political circumstances I have decided with my family that it is best for me not to run for County Supervisor at this time. I know Antioch has a lot of challenges ahead of us and I am committed to work and resolve them."
Freitas has served on the City Council for nearly 10 years, having joined it in November of 1998 along with Councilman Jim Davis, whom he finished behind with 24 percent of the vote to Davis' 26 percent.
Freitas won his first term as mayor in 2000 when he easily beat Davis and several lesser known candidates, winning 52 percent of the vote to Davis' 36. In a two-man rematch in 2004, Freitas again beat Davis, this time by a 58-42 margin.
The two candidates who have announced so far in the race for the county's fifth supervisorial district are Glover and Oakley Planning Commissioner Erik Nunn. Glover beat Nunn 55 to 45 percent in 2004, a relatively close margin as Nunn was then an unknown with no political experience challenging an incumbent. Glover will be seeking his third four-year term as supervisor.