Complex sentence: The 2017 Conservative Party of Canada leadership election will be held on May 27,2017 to choose a successor to Stephen Harper, who led the Conservative Party of Canada as its first permanent leader from 2004 following the merger of the Canadian Alliance and Progressive Conservative parties.
Split into simpler sentences: The 2017 Conservative Party of Canada leadership election will be held on May 27,2017. Party members will choose a successor to Stephen Harper, who led the Conservative Party of Canada as its first permanent leader from 2004 following the merger of the Canadian Alliance and Progressive Conservative parties.