Australia's youngest federal politician has been fined for speeding while driving a taxpayer-funded parliamentary vehicle in South Australia. The car was a privately plated vehicle supplied under the federal parliamentary fleet scheme, which allows MPs and senators to use taxpayer-funded vehicles for both official duties and personal travel. Ms Walker became the country's youngest federal politician when she entered the Senate in 2025 at age 21. Picture: NewsWire / Martin OllmanMs Walker also paid an administrative processing fee charged through Ministerial and Parliamentary Services because the vehicle was part of the fleet. Advertisement AdvertisementAdvertisement AdvertisementMs Walker entered the Senate in 2025 at just 21 after Labor's sweeping election victory, drawing national attention as the country's youngest federal politician.