Mohamed Amersi, who partially funded Boris Johnson’s campaign to become prime minister, also advised the telecoms firm Telia, which in 2010 made a controversial $220m payment to a secretive offshore company. Oil executive Victor Fedotov, who gave £900,000 to 34 Tory MPs, made $4bn from allegedly corrupt Russian pipeline deals, and is currently seeking government approval for a controversial energy link between the UK and France. Lubov Chernukhin has given over £1.8m to the Conservatives since 2012. The secret offshore wealth she shares with her husband, a former Russian minister, includes a London house worth £38m and a £10m Oxfordshire mansion. Mrs Chernukhin's lawyers say she is a British citizen and is entitled to do as she wishes with her money. High-profile foreign politicians and UK political donors have over 1,500 UK properties, bought secretly using offshore firms worth £4bn. See also