Question: Charles "Chuck" Strahl, PC, is a Canadian businessman and politician, first elected for the Reform Party, he was the leader of the Democratic Representative Caucus that left the Canadian Alliance in opposition to leadership of which former Canadian politician, and a member of the Conservative Party of Canada?
Sentence (from "Chuck Strahl"): First elected for the Reform Party, he was the leader of the Democratic Representative Caucus that left the Canadian Alliance in opposition to Stockwell Day's leadership.
Relevant evidence: Yes