 Trevena endorsed Horgan to be leader of the BC NDP in the 2014 leadership election, as she had done in 2011 election.After Horgan became leader he kept Trevena as the opposition critic on transportation.In the 41st BC general election, Trevena was challenged by Dallas Smith of the Kwakwaka'wakw First Nations for the BC Liberals, Sue Moen for the Green Party, and former BC Refederation Party party leader John Twigg for the BC First Party.