Complete the following sentence: At a special convention on whether to support the Treaty of Lisbon on 19 January 2008, the party voted 63.5% in favour of supporting the Treaty; this fell short of the party's two-thirds majority requirement for policy issues. As a result, the Green Party did not have an official campaign in the first Lisbon Treaty referendum, although individual members were involved on different sides.<unk> As a result, the Green Party did not have an official campaign in the first Lisbon Treaty referendum, although individual members were involved on different sides. <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk>
<unk> <unk> <unk> Exactly two-thirds of party members present voted to campaign for a 'Yes' in the referendum.<unk> Exactly two-thirds of party members present voted to campaign for a 'Yes' in the referendum. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️