Rishi Sunak has warned that Tory leadership rival Liz Truss's tax plans would add £50 billion to borrowing while failing to give direct support to the most vulnerable in society, as the cost-of-living crisis deepens.

Rishi Sunak has warned that Tory leadership rival Liz Truss's tax plans would add £50 billion to borrowing while failing to give direct support to the most vulnerable in society, as the cost-of-living crisis deepens.