 Ms Lucas told the BBC later that the job-share sent a political message about "doing politics differently" but it had also been "a very practical decision".In an acceptance speech delivered together, Ms Lucas and Mr Bartley called for the Greens to form "progressive alliances" with like-minded parties.Ms Lucas has previously floated the idea of a loose electoral pact with other parties on the left of British politics, including Labour, which would see them give Green candidates a clear run in constituencies where they were best placed to challenge the Conservatives and vice versa.