Scott Morrison was trackside at Randwick to witness Winx notch up her 33rd consecutive victory on Saturday. Coincidentally enough, it also marked the end of Mr Morrison's 33rd week in the top job.
The Prime Minister rubbed shoulders with Governor-General Peter Cosgrove, swimming legend Dawn Fraser and television personality Kerri-Anne Kennerley at the raceday VIP lunch, and shook hands with punters ahead of Winx's 3pm start.
"It was just spirited, the way the crowd just carried her home," Morrison said moments after the win. He said he expected to remember the occasion for the rest of his life.
Opposition Leader Bill Shorten cheered on Winx's big win on his smartphone from his campaign bus on the NSW Central Coast.
"I love it when a favourite wins," he said, in a less-than-subtle nod to the other big race.
For Mr Morrison, it was a cheery afternoon at Randwick after a sombre start to the day announcing an extra $22.5 million for youth and Indigenous mental health research at a Headspace centre in Sydney's Ashfield.
Mr Morrison's wife Jenny, who has largely eschewed the spotlight since her husband became PM, joined the campaign and spoke about the difficulty of detecting and responding to the mental ill-health of a child.
"It's so important for children to feel they can come forward with mental health issues," she said. "With a sore foot, you can notice and you can help. But children have to tell you, or you have to notice, or they have to open up in one way, shape or form."
The Prime Minister made the announcement flanked by his candidate for the marginal seat of Reid, Fiona Martin, who is herself a child psychologist.
The campaign descended into negative territory when Morrison accused Labor of peddling racist sentiments over the Queensland coal mine to be built by Indian mining giant Adani.
Mr Morrison appeared to accuse deputy opposition leader Tanya Plibersek of racism - though without actually using the word - after she said Australians cannot "rely on an Indian mining company to bring jobs to central and North Queensland".
The PM linked the issue to former NSW Labor leader Michael Daley's infamous remarks that Asian migrants were taking young people's jobs.
"I think there's form here from the Labor Party, particularly here in NSW," Mr Morrison said.
"At the recent state election, we had Michael Daley saying Asians will take your jobs. Now we've got Tanya Plibersek, who would be deputy prime minister of the country, saying that Indian businesses can't create jobs.
"The Labor Party has form here. It took Bill Shorten six days to denounce what Michael Daley said."
Earlier, Resources Minister Matt Canavan - a vociferous proponent of the Adani mine in Queensland - also accused Ms Plibersek of "blatant dog whistling" on the issue.
Asked whether he was accusing Labor and Ms Plibersek of racism, Mr Morrison said: "No, I'm just saying exactly what I've just said."
The comments will deepen the negative sentiment that has already defined the start of the five-week campaign after Home Affairs Minister Peter Dutton said his Labor opponent in Dickson, Ali France, had used her disability as an "excuse" not to reside in the electorate.
After doubling down on the remarks on Friday, Mr Dutton apologised in a tweet on Saturday.
In a busy day of campaigning, Mr Morrison and Dr Martin walked through shops at Strathfield Plaza in the seat of Reid, which the government holds on a margin of 4.7 per cent.
They were joined by outgoing Liberal member Craig Laundy, who said Mr Morrison had to hold the seat in order to hold office. "Without it I don't think we form government," he said.
The Prime Minister ran into a spot of trouble when, amid some confusion, he greeted a woman with the words "ni hao", which means hello in Mandarin. She responded: "I'm Korean."
Mr Shorten used his second full day of the campaign to canvass two key NSW seats, Robertson, held by the Liberal Party's Luck Wicks, and Dobell, held by the ALP's Emma McBride.
He started with the Mt Penang Parkrun before visiting the Woy Woy netball courts to announce an $8.6-million promise to revamp the "slip, slop, slap" skin cancer awareness campaign.
The visit included an impromptu rendition of Happy Birthday to nine-year-old Isabel Shorter.
The Opposition Leader conducted another town hall meeting at a packed-out sporting club in Gosford with questions ranging from Julian Assange to climate change. He also pledged $60 million to a package to bring forward local roadworks.
Mr Shorten's wife, Chloe, and two of their children then joined them at the Royal Sydney Show, which included a trip to the petting zoo for their youngest, Clementine.