Australian voters will go to the polls on May 21.
The government enters the battle trailing the opposition 46-54% in the latest Newspoll, conducted after the budget, with Morrison and opposition leader Anthony Albanese virtually level as preferred prime minister. Labor is also ahead in the other major polls.
After flying from Sydney, Scott Morrison visited the governor-general on Sunday morning, paving the way for a six-week campaign. The Coalition is seeking its fourth term, while Morrison is leading the government into his second election as prime minister.