Thanks very much for reading Need to Know this Sunday, September 1. Here are this morning’s biggest headlines:

• Fight for gender question as Labor wants ‘clear’ census: The census needs to be clear and simple for Australians to complete, one minister says, as the government is pressured to ask about gender identity.
• Coalition eyes student caps amid housing crunch: The Coalition’s assistant spokesman for home ownership, Senator Andrew Bragg, says caps on international students are necessary given the link between housing affordability and the number of foreigners living in Australia.
• UN races to halt polio in Gaza as fighting set to pause: A campaign to inoculate children in Gaza against polio and prevent the spread of the virus has begun, the strip’s health ministry said on Saturday (Sunday AEST), as Palestinians in the Hamas-governed enclave and the occupied West Bank reeled from Israel’s military offensives.
• Ukraine’s Zelensky presses US to greenlight deeper strikes into Russia: Ukrainian President Volodymyr Zelensky increased pressure on the United States to let Kyiv strike military targets deep inside Russian territory after his representatives met senior US officials in Washington on Saturday (Sunday AEDT).
• Harris calls Trump cemetery visit a disrespectful political stunt: US Vice President Kamala Harris criticised Republican presidential rival Donald Trump on Saturday (Sunday AEDT) over a visit he made to soldiers’ graves at Arlington National Cemetery that was later used in campaign video footage.