James Cartlidge has been MP for South Suffolk since 2015 and is now Shadow Defence Secretary, the Conservative voice on the most serious brief in politics. He is fluent and quick, a former journalist who built a business before Parliament, and the question is whether the fluency has ever been matched by grip.

He made his own way in. He founded Share to Buy, a portal and broker for shared ownership and first time buyers, and wrote for newspapers before standing, an outsider's route rather than the usual special adviser's. As a minister he rose through justice and the Treasury to become Minister for Defence Procurement in 2023, and there he did some real things, launching a defence drone strategy that drew on the lessons of Ukraine and, as a justice minister, uplifting criminal legal aid fees by fifteen per cent. On Ukraine he has been steady and right, backing the country's defence without equivocation.

The trouble is that the brief he is proudest of is a record of things going wrong. As courts minister he doubled magistrates' sentencing powers from six months to twelve, his flagship measure, and within a year the government quietly reversed it back to six because the prisons were full, a reform undone almost as fast as he made it. As procurement minister he carried the can for the Ajax armoured vehicle programme, a failure costing billions that left soldiers injured by noise and vibration and which an official report found riddled with systemic and institutional problems. On his watch the National Audit Office judged the defence equipment plan unaffordable by nearly seventeen billion pounds, the worst shortfall in over a decade. Procurement was his job, and procurement is where the money disappeared.

Then there was the moment that captured the gap between manner and mastery. Responding for the opposition to the government's Strategic Defence Review in June 2025, he admitted he had not been given the document in advance and had not read it, and proceeded to comment on it anyway. For a shadow defence secretary it was an unusually candid confession of unpreparedness.

In 2024 he held South Suffolk with a majority of 3,047, down from nearly twenty three thousand, Labour in second. Badenoch kept him at defence.

Cartlidge is articulate, hard working and genuinely sound on the threat from Russia, and a self made man on the front bench is rarer than it should be. He is also the minister who held the procurement brief through some of its worst years and then turned up to judge his successor's defence review without having read it. The confidence has never been the problem. The command of the detail beneath it has.