That’s a wrap – thank you for reading the Need to Know blog today. We will be back soon with more live coverage of news, so please join us then. These were some of the main stories:

• Chalmers says tariff costings ongoing but PBS ‘not up for negotiation’: Treasurer Jim Chalmers says the government is working through any potential costs following the Trump administration’s flagged 200 per cent tariffs on pharmaceuticals and 50 per cent tariffs on copper imported into the US.
• Opposition calls for government to axe super tax to boost productivity: Shadow treasurer Ted O’Brien says the opposition will press the government to axe its plan to introduce a tax on superannuation balances above $3 million at next month’s productivity round table.
• 5.7 million hacked Qantas customers could be at risk of targeted scams: Scammers could have a direct route to devising targeted scams for millions of Qantas customers in the coming months as the airline reveals exactly what personal data was exposed in a major cyberattack.

• More than 160 still missing after deadly Texas floods: More than 160 people are believed to be missing in Texas, four days after flash floods killed over 100 people during the Independence Day weekend, Governor Greg Abbott said on Tuesday (Wednesday AEST).

• Trump rebukes Putin, says weapons will go to Ukraine: US President Donald Trump on Tuesday (Wednesday AEST) stepped up his criticism of Russian President Vladimir Putin as he reiterated plans to send more weapons to Ukraine to aid in its war against Russia.