Chalmers said the shadow treasurer, Ted O’Brien, and the opposition leader, Sussan Ley, faced a key test with the 19-21 August talks at Parliament House, which will consider tax reform and ways to lift living standards. “If Ted O’Brien comes to the reform roundtable and treats it as an extension of question time, I think that will go down pretty badly in the room,” he said. “I think a lot of the commentary, whether it’s from Ted O’Brien or Sussan Ley, I don’t think they are by their nature constructive, collaborative types.”View image in fullscreen Liberal leader Sussan Ley and shadow treasurer Ted O’Brien. The summit will guide Labor’s second-term agenda, which will include skills, the net zero energy transition, workforce pressures and the care economy. Chalmers is expected to hold one-on-one talks with counterparts from the UK, Canada, Japan, Germany and Indonesia while at the summit.