In 1961 he founded and was the principal director of PS Agencies and in 1967 became the first individual winner of the John Lynn Memorial Prize for outstanding contribution to the farm machinery industry. Lewis became active in
Liberal politics, becoming president of the Mobrup branch near Kojonup, and then president for the
Division of Forrest. At a
by-election on 16 December 1972, he was elected to the
Legislative Assembly of
Blackwood. When this seat was abolished at the
1974 election, he successfully transferred to a
Lower Central Province seat in the
Legislative Council. From 1977 until 1984, with a brief break in 1982–1983, Lewis served as secretary to the Parliamentary Liberal Party, and in 1983–1984, to the Shadow Cabinet following the defeat of the Liberal government. Additionally, he was a member of the Joint House Committee for the entire period, and chaired a Select Committee into national parks in 1980–1981, into cultural and recreational facilities in 1982, and into the Conservation and Land Management Bill 1984 (during which he became an honorary Royal Commissioner). In March 1986, he resigned from the Liberal Party over a disagreement with leader
Bill Hassell over the shadow cabinet's relationship with Select Committees. He designated himself an "independent Liberal" but rejoined the party in October 1986. He was rewarded with a shadow secretary role with special responsibility for party liaison, the campaign committee and special projects in December 1986, and served on select committees inquiring into the SEC advanced coal purchase from Western Collieries Ltd and the state funding of Aboriginal programs in 1988. With the abolition of his seat at the
1989 election, he nominated for Liberal preselection for a winnable seat in the
South West region, but failed in his bid, and exited from political life at the election. He engaged actively in the local community, serving on the Bushfire Brigades Committee as well as football and aero clubs. From 1977, he was also state secretary of the Farm Machinery Dealers' Association, becoming its national secretary in 1979. ==References==