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Today in Parliament
Senior researcher Rebecca McKee appears on BBC Radio 4's Today in Parliament to discuss MPs who switch party allegiance as Lee Anderson joins Reform.
Senior researcher Rebecca McKee appears on BBC Radio 4's Today in Parliament to discuss MPs who switch party allegiance as Lee Anderson joins Reform.
What happens when MPs change political parties?
The Lee Anderson furore is unlikely to be the last of its kind in a general election year.
There are 650 seats in parliament. To have an overall majority, a political party must win over half of these seats: at least 326.
How many MPs are standing down at the next election, and why?