In the 45th Parliament David served as the Assistant Minister for Defence. Previous appointments include Deputy Government Whip in the Senate and Chair of the Joint Standing Committee on Foreign Affairs, Defence and Trade (JSCFADT).

You can read more about David’s work in the Senate’s Committees.

David was first elected to the Australian Senate by the people of South Australia at the August 2010 Federal Election, and re-elected at the July 2016 Federal Election.

As Deputy Government Whip, David helped to maintain the orderly function of the Senate and the legislative process in conjunction with the Government Whip.