Cutting petrol tax to bring down the cost of living used to be the political version of a joke. Failed US presidential candidates John McCain and Hillary Clinton both tried it in 2008. Their bipartisan advocacy of a “summer gas tax holiday” was derided as dumb, a turkey and a “metaphor for the entire campaign”.
When 230 economists released a letter opposing it in 2008, Clinton said: “I’ll tell you what, I’m not going to put my lot in with economists”.