 Rasmussen has been a member of the Folketing since 21 September 1994.He also served as County Mayor of Frederiksborg County from 1998 to 2001.Subsequently, he was the Interior and Health Minister from 27 November 2001 to 23 November 2007 as part of Anders Fogh Rasmussen's first and second cabinets, and then Minister of Finance from 23 November 2007 to April 2009 as part of Anders Fogh Rasmussen's third cabinet.