Coyne left "Maclean's" in 2011 to return to the "Post" as a columnist. In December 2014, he was appointed to the position of Editor, Editorials and Comment. After years of writing a weekly Saturday column, Coyne's contribution was absent from the edition published just prior to the 2015 Canadian federal election, because the column he wanted to submit called for a vote against the Conservative Party of Canada while the Post's editorial board had endorsed the Conservatives. While Coyne was the head of the editorial board, the decision to endorse the Conservatives was made by the newspaper's publisher Paul Godfrey. On election day, Coyne announced that as a result of the paper refusing to run his election column, he was resigning as the Post's editorial page and comment editor but would remain as a columnist.