This week, the Albanese government has been criticised for a tactical backdown on its plan to wind back tax concessions on superannuation balances worth more than $3m. But the assistant minister for productivity, competition, charities and treasury, Andrew Leigh, argues that this change in approach has maintained fairness in the super system. The MP for Fenner also talks to political editor Tom McIlroy about the challenge of AI for lawmakers, why competition policy is key to productivity growth and his early morning training for an upcoming ultramarathon