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The life story of Commons Speaker John Bercow. He has announced he will stand down at the end of October after ten highly controversial years in the job. In turbulent political times, he’s proved to be a polarizing figure. For some, he is the backbencher’s champion - the most modernising Speaker in parliament’s history. Others accuse him of bias, and deliberately trying to stop Brexit. Mark Coles talks to friends, colleagues and critics of Speaker Bercow - hearing about his long political journey which started on the far right - and how he wooed his now wife with feats of rhetoric. And with his thunderous shouts of ‘Order Order’ now mimicked and memed around the world, we hear how for some, he has become an unlikely social media superstar.Producer Smita Patel Researcher Darin Graham

This week David Gauke - MP for South West Hertfordshire - shook the government he served as a cabinet minister only a few weeks ago, voting to stop Boris Johnson taking the UK out of the EU without a deal. He's given the Tory rebels their label: the "Gaukeward Squad." Edward Stourton looks at the life of this unlikely rebel.Producers: Darin Graham and Smita Patel

Peter Navarro is the economist and key White House advisor who’s egged President Trump on in his bitter trade war with China. It’s a conflict some fear threatens the stability of the global economy. Producer Smita Patel Researcher Darin Graham

Arguably the most controversial appointment of new Prime Minister Boris Johnson’s reshuffle was that of 47-year-old Dominic Cummings as his head of Brexit strategy. After serving as Michael Gove’s special adviser in the Department for Education, his role as the mastermind behind Vote Leave changed the course of British history – and now he is back to finish what he started. How did a swotty schoolboy from Durham come to be hailed as a political genius, and the most feared – and revered – man in Whitehall?Presented by Becky Milligan Produced by Jordan Dunbar Researched by Kirsteen Knight and Eleanor Biggs

Ihlan Omar is the 37-year-old Somali-born US congresswoman - one of only two Muslim women ever elected to Congress - who's become a thorn in President Trump’s side and on the receiving end of his temper. Omar was one of four congresswomen Trump told to “go back” to where they came from. So who is Ilhan Omar, why has she got the President’s back up - and what's he really up to in targeting her? Mark Coles has been finding out.Thank you to Norah Shapiro for use of clips from her documentary 'Time for Ilhan'. Researchers: Khadidja Ndiaye and Kirsteen Knight Producer: Phoebe Keane

German defence minister Ursula von der Leyen is likely to replace Jean-Claude Juncker as President of the European Commission in November. Mark Coles tells her story so far.Producer Smita Patel

The US women’s football team has made it to the World Cup final. One American newspaper has described the team's iconic player - Megan Rapinoe - as the most important athlete on the planet right now. But she isn't only a sensation on the pitch. She's a controversial figure off it. Presenter: Becky Milligan Producer: Viv Jones

It's Britain's top civil servant this week: Sir Mark Sedwill, Cabinet Secretary and the UK’s National Security Adviser. He's the first person to juggle both roles at the same time. And - what with Brexit, a new PM, perhaps even a looming constitutional crisis - he's doing it at a time of serious uncertainty. So: who is he?Presenter: Mark Coles Producer: Ben Crighton

Joshua Wong has gone from schoolboy protester to the face of the pro-democracy movement in Hong Kong - a passionate defender of the territory’s right to self determination. He’s been repeatedly arrested and jailed. Now this week - fresh out of prison - the 22-year-old Wong is back in the limelight, putting himself on a collision course with the authorities in mainland China.

Jo Swinson is the bookies favourite to win the Liberal Democrat leadership race and take over from Vince Cable. But can this 'millennial' politician from a suburb of Glasgow, be the woman who takes the Liberal Democrats to election victory?