On 13 February, one of those crossbenchers, former Liberal Peter Lewis, announced that he had signed an agreement with Labor leader Mike Rann to support a Labor Government in exchange for holding a constitutional convention, making him speaker of the House of Assembly, and concessions for his electorate including the phasing out of commercial fishing in the River Murray, prioritising the eradication of the branched broomrape weed, changing water rates for irrigation, fast-tracking a feasibility study for a weir and lock at Wellington, and improving rural roads. This agreement effectively made Rann premier-elect by one seat.