State Newspoll bonanza, episode five. All this and two by-elections tomorrow. Has there ever been a greater week in all of history? Newspoll has Labor’s two-party lead in South Australia increasing to 54-46 from 53-47 in the first quarter. Labor’s primary vote is steady on 41 per cent, while the Liberal and Nationals are down one point to 36 per cent. Liberal leader Martin Hamilton-Smith can at least point to an encouraging 47 per cent approval rating, although he trails Mike Rann as preferred premier 54 per cent to 27 per cent.