Education
Armstrong attended Newington College (1949–1953).
Armstrong attended Newington College (1949–1953).
He was Minister for Agriculture and Rural Affairs from 1988 to 1993. From 1993 until 1995, he was Deputy Premier of New South Wales as well as Minister for Ports and Minister for Public Works. Armstrong was set to lead the Nationals at the March 1999 state election but was ousted by his deputy George Souris just two months beforehand in January 1999.
lieutenant was the second part of leadership changes from the Coalition as Armstrong"s ousting came a month after Peter Collins was deposed as Liberal leader by Kerry Chikarovski.
His seat of Lachlan was abolished for the 2007 state election. The abolition of Lachlan prompted Armstrong"s retirement at the 2007 election because if he had wanted to remain in Parliament he would have to find another seat and there was no incentive for Armstrong to remain in Parliament with the abolition of Lachlan.
Armstrong was a member of the New South Wales Legislative Assembly for Lachlan from 19 September 1981 to March 2007.