The prime minister is under pressure to sack Conservative Party fundraiser Ben Elliot over his links to Russian oligarchs.
Labour has written to Boris Johnson, calling on him to sack the nephew of the Duchess of Cornwall, who raised nearly £2m from donors with links to the Kremlin.
He is co-founder of Quintessentially, a luxury concierge company that launched its Russia office in 2006 and has expanded it to roughly 50 employees at its base in Moscow.
Quintessentially has boasted of how it helped wealthy Russians in London find properties, advise on the best schools and staff such as nannies. Its separate Russian-language site still bears the slogan: “Access the inaccessible. Achieve the impossible.”