Shadow assistant treasurer Andrew Leigh reckons Joe Hockey's plan to shed tax office jobs is a dud, given ATO data which suggest they make more in revenue than their sackings will save. Join him in front of the Guardian Australia whiteboard for a show and tell – it's 'Smokin' Joe' in the firing line as Leigh makes the case for the number-crunching civil servants

Independent senator takes to the Guardian Australia whiteboard to explain how the Senate works

Andrew Laming becomes the second politician to take to the Guardian Australia whiteboard to help explain the controversial 2014 Australian federal budget. Laming breaks down what he calls an unsustainable level of debt while explaining the carbon tax, fuel rebate, commonwealth scholarships, co-payments and cuts to the ABC and SBS.

Using just a marker pen and a white board, Labor's shadow minister for infrastructure and transport, Anthony Albanese, breaks down what he calls the 'so-called infrastructure plan' contained in the Coalition's 2014 budget