After the Scottish Government announced the referendum on Scottish independence, a campaign group called Yes Scotland was established to promote a vote for independence. Leading members of the Scottish Green Party actively supported and became involved with the campaign from its foundation, with Patrick Harvie among the members of Yes Scotland's Advisory Board. In November 2013, Edinburgh councillor Maggie Chapman succeeded Martha Wardrop as the party's female co-convenor. In December, former convenor Robin Harper said that he would "absolutely vote No" in the independence referendum and offered his backing to the Better Together campaign, putting himself at odds with official party policy and its present leadership. Going on to say that he would like to help the Better Together and that there was a "significant minority" of Greens who were opposed to independence. Uniquely amongst the parties in the Scottish Parliament, the Scottish Green Party is open about and comfortable with the differences of opinion in the party on the constitutional issue, with co-convenor Patrick Harvie pointing out that "even the very firm supporters of independence within the Greens tend to be more strongly motivated by other aspects of our political agenda..."