Malcolm Turnbull will mark his one-year anniversary as Prime Minister with a worse approval rating than Opposition leader Bill Shorten, according to the latest Newspoll published in The Australian.

Despite last week’s forced resignation of prominent Labor senator Sam Dastyari from its frontbench, there has also been no gain for the Coalition over the Opposition.

The poll of 1680 voters, surveyed from last Thursday to Sunday, shows no change in the past fortnight in the primary vote for the major parties, with the Coalition remaining on 41 per cent, Labor on 36 per cent, the Greens at 9 per cent and minor parties and independents at a combined 14 per cent.

Based on preference flows from the July election, the two-party-preferred vote is unchanged at 50-50.

The dissatisfaction with Mr Turnbull’s performance grew one point to a new high of 53 per cent and has more than doubled over his 12 months as PM.

Mr Turnbull’s net satisfaction rating — the difference between those who are satisfied and those who are dissatisfied — has reached a low of minus 19 points, a massive tumble from his honeymoon peak of plus 38 points.

He continues to trail Mr Shorten, who sits on a net satisfaction rating of minus 17 points.