In 2008 he was unable to run for re-election due to term limits and was replaced by Roy Schmidt.
Sak received his Diploma from Grand Rapids Union High School in 1977, his Bachelor of Fine Arts degree from Utah State University in 1982 and his Masters of Education degree from Grand Valley State University 13 years later.
From 1999 to 2003, he served as the Eisenhower Grant Coordinator and an Assistant Principal at the Math Science Academy in Grand Rapids.
He represents the 76th district, which is located in Kent County and encompasses the northwest, northeast and southeast portions of the City of Grand Rapids.
In 2006, Democrats won the majority in the Michigan State House, and Sak was subsequently elected to be the Speaker pro Tempore.