The Tory leadership race is becoming a test of patience. Today Rishi Sunak has laid out his plan to slash tax: not in a matter of days or weeks, as Liz Truss has pledged to do, but by the end of the next parliament. He’s promised to reduce the base rate of income tax by 20 per cent, by taking 1p off income tax in 2024 (as already pledged) and an additional 3p over the next parliament.