Thanks very much for reading Need to Know this Sunday, September 8. Here are the day’s biggest developments:

- Census will ask gender, sexuality: Treasurer Jim Chalmers said there will be a new question covering both sexual orientation and gender in the 2026 census.

- ‘I don’t second-guess the RBA’, says Chalmers: The incumbent has distanced himself from former treasurer Wayne Swan’s strident criticism of the Reserve Bank of Australia, saying the Albanese government was working with the central bank to ensure inflation is brought within its target range.

- Trump pledges 100pc tariff for countries that shun the US dollar: Donald Trump pledged on Saturday (Sunday AEST) to make it too costly for countries to shift away from using the greenback.

- Elon Musk’s pro-Trump ads are not subtle: The entrepreneur’s America PAC is starting to fire up its digital ad campaign supporting Donald Trump’s presidential bid. The messages so far have been targeted at swing-state voters.