Sam Carling was elected Labour MP for North West Cambridgeshire on 4 July 2024 with 14,785 votes (33.3 percent) and a majority of just 39 (0.1 percent) over Conservative Shailesh Vara, after a recount. He is the Baby of the House and the first British parliamentarian born in the 21st century, and his win went viral on TikTok; he woke, he said, to "messages from friends telling me I was all over social media."

Born in County Durham in 2002 and raised in Crook, which he calls "quite a deprived part of the north east," in a "totally apolitical family," he was brought up a Jehovah's Witness, an organisation he describes as "a high control religious group," and left at the age of 11. He has spoken against the Jehovah's Witnesses in Parliament and called for mandatory child abuse reporting laws covering such organisations, the most politically significant thread of his story. He says the cancellation of his A level exams during the pandemic politicised him: "in many ways it was that experience that politicised me."

He studied science at Christ's College, Cambridge, where he was JCR President and co-chair of the Cambridge University Labour Club, and was an MPhil student in Pathology at the time of his election. He served on Cambridge City Council for West Chesterton from 2022 to 2025. The constituency takes in southern Peterborough, and he works closely with Peterborough MP Andrew Pakes on city issues, with priorities in NHS dentistry, transport and investment in the area.

He sits on the Public Administration and Constitutional Affairs Committee (since January 2025) and has served on the Renters' Rights Bill and English Devolution and Community Empowerment Bill committees. He called his first year "a baptism of fire" and praised collaborative committee work: "I wish the public could see that more. It's not all about shouting and blaming each other."

Carling's strengths include a deprived northeast background giving genuine understanding of deprivation, the Jehovah's Witness experience giving him a distinctive and powerful platform on institutional child protection, a Christ's College Cambridge science education, MPhil level qualification, the PACAC placement, being the first 21st century born MP, and the sheer improbability of a 39-vote win in a seat Conservative since 1997. His weaknesses include the 39-vote majority making this the most vulnerable Labour seat in England by a wide margin, a 33.3 percent vote share with Conservatives at 33.2 percent and Reform near 20 percent, no ministerial office, no legislative achievement, a council ward in Cambridge rather than the constituency, and the permanent risk that a 22 year old elected in a landslide is treated as a curiosity rather than a parliamentarian. At 23, he has more time than any other MP. The Jehovah's Witness advocacy and the child protection campaign are more consequential than the age record. Whether those campaigns produce legislation will determine whether his career is remembered for 39 votes or for something larger.