Senior Liberals admit the party has a mountain to climb to win back voters after the coalition plunged to its worst-ever primary vote in Newspoll history.

The poll published on Monday shows the coalition sitting on a primary vote of 27 per cent, the lowest level since Newspoll began tracking first preferences in 1985.

Labor's primary vote was steady at 36 per cent, giving Prime Minister Anthony Albanese a commanding 58 per cent to 42 per cent two-party-preferred lead - his biggest margin since taking office.

Opposition defence spokesman Angus Taylor said the party needed to restore trust with voters, after the poll was published in The Australian on Monday.

"We're still a long way from the next election, but we have a lot of work to do, and there's no doubt about that," he told ABC Rad

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