Wren ran as a Liberal-Labour candidate in
1948 provincial election but was defeated by the
Progressive Conservative candidate James George White by 957 votes. He ran again in
1951, this time defeating his PC opponent by 88 votes. Wren sat with the
Liberal caucus and ran twice in
Ontario Liberal Party leadership conventions. He placed second in 1954 with 162 votes when he lost to
Farquhar Oliver (a former
United Farmers of Ontario MPP). In 1957, Wren and fellow MPP
Arthur Reaume were expelled from the Liberal caucus for attacking Oliver's leadership and demanding a new leadership convention. Oliver subsequently resigned and a new leadership vote was held in 1958. Wren ran, placing last with only seven votes on the first ballot and then threw his support to
John Wintermeyer who ultimately came from behind to win the convention. Wren served as his party's Labour Critic. He died in office in 1961. ==References==