Gideon Rachmann

After weeks of successes for ISIS, the terrorist group wants to take over the Middle East and make the West look weak. But is their plan sustainable? 

Voters across the UK are heading to the polls today to vote in their local elections. There’s also a referendum on the ballot that, if passed, would change how the voting system works. On today’s Backstory, David Rennie, Political Editor and Bagehot columnist for The Economist, and Gideon Rachman, Chief Foreign Affairs columnist for The Financial Times, explain what that would mean for UK politics.