Its Kildare-South candidate feels it's a no brainer.
People Before Profit believes only €100 million needs to sourced for its free public transport plan.
Minister for Transport Shane Ross estimates the cost of the idea to be in the region of €600 million.
PBP's Roisin Ui Bhroin says a €300 million saving from payments to oil companies, combined with another €200 million saving from EU fines in relation to climate change, will make up the majority.
The Kildare-South election candidate says it's a no brainer: