"The 'killer' question that any journalists thinks that they can ask a politician who is proposing any new initiative is 'how are you going to pay for it?' The assumption is that government lives in a zero-sum and financially constrained world where if they are to propose some new action then something else has to be foregone to pay for it, or a specific new tax has to be found to fund the project." --- Watch the video!
https://www.taxresearch.org.uk