75%
True

[Labour MPs voting] to remove half a million children from poverty... after hundreds of thousands were plunged into poverty by the party opposite.

Government and Resolution Foundation analysis estimates that scrapping the two-child benefit limit lifts around 450,000 children out of poverty by 2029-30, rising to over 550,000 when combined with other measures in the child poverty strategy. 'Half a million' is a reasonable rounding, so the core claim holds.
Checked Wed 1 Jul, 09:57 · Broadcast: PMQs: Prime Minister's Questions - 4 February 2026

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