@guardianaustralia: Pauline Hanson and Barnaby Joyce billed taxpayers more than $3,000 for travel expenses to attend fundraising and donor events on board the luxury cruise ship The World, hosted by the mining billionaire Gina Rinehart. Guardian Australia can reveal that in December last year Hanson and Joyce attended multiple private events on the world’s largest privately owned cruise ship, on which Australia’s richest person owns an exclusive multimillion-dollar apartment. Rinehart will be required to declare the gift to the party under Australian Electoral Commission rules if the value of hosting the fundraiser is above the disclosure threshold of $17,300 for the 2025-26 financial year. To learn more Rafqa Touma spoke to senior correspondent Sarah Martin.