The federal coalition has lost significant ground in Western Australia and Queensland and faces collapse in South Australia, but has improved slightly in Victoria and remains relatively stable in NSW, a Newspoll analysis shows.
The analysis of three months worth of data and published in The Australian also shows the coalition has lost male rather than female voters, despite the Liberal Party recently being under pressure over treatment of women in politics.
On a two-party-preferred basis, the Scott Morrison-led coalition trails Labor 49-51 per cent on average over the past four Newspolls.
In WA the federal Labor vote surged from 32 per cent in the December analysis to 42 per cent in the latest quarterly analysis, while the coalition dropped from 43 per cent to 40 per cent.
This produced a 12-percentage-point turnaround in the two-party-preferred vote from 53-47 in the coalition's favour in December to favour Labor 53-47 now, with the coalition on track to be defeated in three WA seats.
The WA result indicates the state Liberal Party's disastrous election result in March had an impact on support for the Morrison government.
In Queensland, Labor's averaged primary vote rose from 29 per cent in the December analysis to 35 per cent in the latest survey, while the coalition dropped from 45 per cent to 42 per cent.
On a two-party-preferred basis, that puts the Liberal National Party ahead 53-47, down from 57-43 in December and on track to lose four Queensland seats.
The only improvement for the coalition in the two-party-preferred vote was in Victoria where Labor's lead of 55-45 in the December analysis fell to 53-47.
The worst state for the coalition is South Australia where its primary support fell six points to 38 per cent and federal Labor's vote rose five points to 41 per cent, putting Labor at 55-45 on a two-party-preferred split.
In NSW, the coalition dropped two points to a primary vote of 42 per cent with Labor flat at 36 per cent, producing a deadlocked 50-50 two-party-preferred vote.
Mr Morrison's lead as preferred prime minister rose a point to 58 per cent while Opposition Leader Anthony Albanese remained on 28 per cent.
The Newspoll analysis also shows the coalition has lost ground with male voters over the past three months.
The male primary vote for the coalition fell from 44 per cent in December to 41 per cent, while female voters remained stable at 41 per cent.
The analysis also shows the Greens fell in every state other than NSW and SA and Pauline Hanson's One Nation also lost support.
Australian Associated Press