Malcolm Turnbull will today officially launch the Liberal Party campaign less than a week out from the federal election.
The event, in the marginal Sydney seat of Reid, is expected to have the economy and stability as its centrepiece.
"The launch will bring to a point of summation the critical choice that Australians face," Turnbull said last week.
"On the one hand, a stable Government, which I lead, which has a clear economic plan for stronger economic growth and more jobs."
Veterans' Affairs Minister Dan Tehan said the decision to host the event in inner-west Sydney was no accident.
"I think Sydney is an important city for our nation and also western Sydney is very much the heartland of Sydney," he told the ABC.
Former Liberal prime ministers John Howard and Tony Abbott will be at the campaign launch, while one-time leader John Hewson is skipping it to speak at a climate change protest in Turnbull's eastern Sydney seat of Wentworth.
The address to party faithful comes as new polling shows Labor is behind in key marginals it needs to claim government.
Reid is one of six seats that polling is said to show the Liberals could retain in NSW. Liberal MP Craig Laundy holds Reid on a margin of 3.3 per cent.
Meanwhile, opposition leader Bill Shorten is in Brisbane where he will launch the final week of the Labor campaign at a Save Medicare Rally.
"Today we launch our final push -- 6 days to Save Medicare," Shorten said on Sunday.
"If the Liberals get the green light at this election they will take Australian healthcare right down the American road."