Klippert is a Pentecostal minister and a sheriff's deputy for the Benton County sheriff's department, serving as a school officer during legislative sessions and a patrol officer at other times. Klippert was a member of the United States Army Reserve in 1987 and retired from the Army National Guard as a lieutenant colonel in May 2016. In August 2016, Klippert was appointed as the commander of the Washington State Guard, a position that he was directed to retire from in December, 2021.

Klippert was elected to the Washington House of Representatives in 2008 and was re-elected that year and again in 2010. He is currently an Assistant Minority Whip.

In January 2021, Klippert proposed legislation (House Bill 1377) that would end voting by mail in Washington state, stating that he has a "reasonable suspicion" that voter fraud using the system is widespread. The bill didn't pass through the House committee by the February deadline. Klippert stated he would continue to attempt to end the state's voting by mail system.