How Rachel Reeves could release billions more for investment in the budget

The chancellor has signalled that she may change some of the government's fiscal rules in her speech. What are they - and what could that mean?

Rachel Reeves is considering changes in next month's budget to the government's so-called fiscal rules, which govern how much it can spend.

The changes are aimed at paving the way for billions of pounds more investment in the UK economy, to help decarbonise the economy and reboot growth.