Today is a historic day for the American presidency, as the House votes on the impeachment of President Trump, in what would be the third impeachment of a president in the 243 year history of the republic. Scott Walker was a rival of Trump’s for the GOP nomination in 2016, and he joins the program to outline the GOP point of view.

Ronny Chieng had his breakthrough last year as Eddie Cheng in “Crazy Rich Asians," a fictional portrait of the glitz and drama of the Singapore elite. Today, he makes his debut on Netflix with “Asian Comedian Destroys America," where he explores the U.S. from his unique vantage point. He gives Hari a preview of the show.

Polarization seems to be the default state of U.S. politics these days, but how did it get so toxic and divided in the first place? Ezra Klein is a policy journalist and co-founder of Vox, and his new book delves into that very issue. He joins the program from California to discuss.

A new film takes a look at the pivotal moments that led to Pope Francis' papacy. “The Two Popes” explores the unique relationship and clash of cultures between then-Cardinal Jorge Bergoglio of Argentina and Pope Benedict XVI. Jonathan Pryce plays Pope Francis, and joins the program to discuss the film and its political message.

Politics are well and truly cemented along party lines in the Democrat-controlled House and Republican-controlled Senate when it comes to the impeachment proceedings, but what is President Trump’s view of the process? Chris Ruddy is CEO of Newsmax and a close confidant of the president, and joins the program in London.

An estimated 1.1 million people are living with HIV in the U.S., and it’s gay black men who are most at risk. Steven W. Thrasher is the Daniel Renberg Chair of Social Justice Journalism at Northwestern University, and he says that while new HIV infection rates are dropping in cities around the U.S., HIV is actually on the rise in rural areas. He speaks with Hari about the crisis.

The two week COP25 climate summit in Madrid closed with key nations dragging their feet over regulating the global carbon market. Despite desperate pleas from activists, carbon cutting was kicked down the road with a compromise that will see new plans negotiated at next year’s summit in Glasgow. Former Secretary of State John Kerry joins the program to discuss this outcome.

The treatment by China’s government of its Muslim Uyghur minority has been both shocking and underreported, but it received a lot more attention this weekend thanks to soccer player Mesut Özil, who criticized China’s treatment of the Uyghurs and the subsequent silence of much of the Muslim world. Christiane speaks about the situation with Uyghur activist Ferkat Jawdat.

Democrats have released a 658 page report that lays out in detail the evidence behind their charges of obstruction of justice and abuse of power against President Trump. The vote may take place in the House this week, but when the trial comes to the Senate, the odds are in the president’s favor. Former Louisiana Governor Bobby Jindal offers a Republican perspective on the situation.

With his large majority, Boris Johnson will push the first stage of Brexit through Parliament by January 31st. But what does his promise to “get Brexit done” really look like? Europe will have an important say. Helle Thorning-Schmidt, former Danish Prime Minister and wife of British Labour MP Stephen Kinnock, joins the program to discuss perspectives from both sides of the English Channel.

The dust has settled on the U.K. general election, and it was a decisive win for Boris Johnson’s Conservative Party and his unambiguously pro-Brexit stance. Johnson has a comfortable majority, guaranteeing that Brexit will happen. By contrast, Jeremy Corbyn’s Labour Party suffered a catastrophic defeat, its worst since 1935. Christiane analyzes the situation with a panel of experts.

This week, a trove of documents reveal how U.S. officials allegedly misled the American people about the war in Afghanistan in an effort to conceal fears that America was losing. But now, the Washington Post has obtained more than 2,000 pages of these documents through a FOIA request. Journalist Craig Whitlock has been looking into the papers for the last three years and joins the show to discuss.

As the results of the U.K. general election became clear early on Friday morning, Christiane spoke with a man who knows better than most just what an achievement Boris Johnson’s victory was. Gavin Barwell is a former Member of Parliament and current member of the House of Lords, and he served as chief of staff to former Prime Minister Theresa May. He joins the program to discuss the election.

The Atlantic Magazine is devoting its December issue to a special report called “How to Stop a Civil War,” looking at a country they say is “coming apart.” Yoni Appelbaum is a senior editor at the magazine, and his article “How America Ends” explores the demographic shift changing the country’s very fabric and its impact on politics today. He speaks with Hari about a cautionary tale for our times.

Myanmar de facto leader Aung San Suu Kyi is in The Hague this week, defending her country over charges of genocide. Not so long ago, she was considered an icon of democracy, but her international support plummeted after she continued to stand up for her army when it was accused of genocide against the Rohingya population. Zeid Ra’ad Al Hussein joins the program to discuss her fall from grace.

Today closes the COP25 climate summit in Madrid. Frans Timmermans is in charge of the climate brief in the European Union, and has formulated a “Green Deal” to make his the first climate neutral continent from 2050. He joins the program from COP25 to lay out his plan and explain why the U.S. must do more.

African American musician Daryl Davis has played with some of the leading music legends of the twentieth century, but he has also spent the past thirty years engaging in something quite remarkable: meeting, and in some cases befriending, members of the Ku Klux Klan and other white supremacist groups. He tells Hari how he has helped more than 200 KKK members renounce their ideology.

As soon as next week, Congress plans to vote on whether to impeach President Trump. If the vote passes, he will be the third president in American history to be impeached, and the case will move to the Senate for a trial, with the senators acting as jurors. Democratic Senator Sherrod Brown discusses how this affects the American people.

Today in the U.K., party leaders have been frantically canvassing for votes on the last day of campaigning before Thursday’s general election. Brexit is top of the agenda, with other issues like climate and Britain’s National Health Service not far behind. Conservative politician Jeremy Hunt joins the program in London to discuss where his party stands as the country prepares to vote.

According to federal data, more than a million students in the U.S. public school system are homeless. Christine Quinn is currently president and CEO of “WIN," New York City's largest provider of services to homeless women and children. She joins the program with Daniel Russo, a school principal in the Bronx in one of the poorest congressional districts in the country.