Scott Morrison will campaign alongside candidates Linda Aitken and Kristy McSweeney during his first trip to Western Australia since the end of border restrictions, as the Liberals seek to defend key battleground seats.

After delaying a badly needed campaign swing through WA due to his COVID-19 isolation earlier this month, the Prime Minister will visit the seat of Pearce, where Ms Aitken is seeking to replace retiring former attorney-general Christian Porter.