Home Secretary, Boris Johnson, has today resigned from his cabinet post, making him the third conservative party member to resign in the wake of Teresa May's government's latest Brexit proposal. Doubts are now being cast on the Prime Minister's ability to lead her party through the Brexit transition, though no serious challenger for her position has materialised at this time. Sterling has let go of gains made previously in the day and is now marginally down against key currencies such the US dollar and the euro. This has increased gains for UK equity markets as a weaker currency aids internationally focused FTSE companies, leaving the FTSE All Share up around 0.75 per cent for the day. Meanwhile, UK government debt has reversed a great deal of the day's earlier losses as investors seek safer assets in light of UK political unrest.