[1] He was a Labor Party member of the Northern Territory Legislative Assembly from 2005 to 2012, representing the remote electorate of Daly.
[2][3] He also served as the Deputy Speaker of the Legislative Assembly from 2006 to 2012, having been appointed to the position after the resignation of Len Kiely.
He contested the newly created seat of Daly in the 2001 election against Country Liberal Party (CLP) candidate Tim Baldwin (who had represented the now-abolished seat of Victoria River, which had been redistributed to form Daly), but was unsuccessful.
[5] He contested Daly again at the 2005 election after Baldwin retired, and was initially thought to have little chance of winning.
[5] Knight was reelected in 2008, but was defeated in 2012 by the CLP's Gary Higgins amid Labor's collapse in the remote portions of the Territory.