 At the NDP's party convention in April 2016, Mulcair was also criticized by Alberta delegates for what was seen as implicit support for the "Leap Manifesto", a program which was seen as opposing Alberta's oil industry and thus a political threat to Rachel Notley's NDP government in Alberta.At the convention, 52% of delegates voted for a leadership review motion to hold a leadership election within 24 months, marking the first time in Canadian federal politics that a leader was defeated in a confidence vote.Mulcair was asked by his caucus to remain as leader until his replacement was selected.