Nearly 9 million Americans have received their first dose of the vaccine, while President-elect Biden received his second dose today. Dr. Peter Salk was just nine years old in 1953 when he got his polio vaccine, which was developed by his own father, Jonas Salk. Now an infectious disease expert himself, Peter Salk joins the show to discuss the importance of vaccines, then and now.

The social media platforms that provided the megaphone for President Trump are now taking action by blocking the president – which raises another issue. What is the appropriate role of unelected business organizations in politics and free speech? Where’s the bar for hate speech, or incitement? And how effective can a ban be? No journalist is better plugged into this world than Kara Swisher.

The president now stares down the barrel of a second impeachment, as House Democrats introduce a resolution charging him with inciting an insurrection. House Republicans remain deeply divided over whether to punish the president. When the U.S. Capitol was attacked, Nancy Mace had been in office just three days as the newly elected congresswoman from South Carolina. She joins the show to discuss.

Following yesterday's attack on the U.S. Capitol, Congress has now certified Biden as victor in the presidential election. But two weeks remain in the Trump presidency, prompting calls for his removal via the 25th Amendment or impeachment. To discuss all this, Christiane speaks with the Democratic Governor of Michigan, Gretchen Whitmer, who herself has been a target of lawless pro-Trump mobs.

To discuss the global fallout of yesterday's attack on the U.S. Capitol, Christiane speaks with Kim Darroch, who served as the UK’s Ambassador to the United States during much of President Trump’s term, and former member of the European Parliament Marietje Schaake, who now specializes in cybersecurity at Stanford.

In the midst of the debates surrounding the certification of Biden’s win, U.S. lawmakers were forced to flee their respective chambers as the mob closed in. Among them was Republican Senator Bill Cassidy of Louisiana. He speaks with Walter Isaacson about what happened when white supremacists, anarchists and anti-Semites stormed the Capitol, and what should be done about President Trump now.

One of the biggest issues being inherited by President-elect Biden is Afghanistan -- the site of America’s longest war. Just hours before the assault on the U.S. Capitol, Afghanistan’s president and first lady joined Christiane for an exclusive interview about the war, peace talks, coronavirus, and what relations with America will look like under President Biden.

In the waning days of the Trump administration, Cabinet members are resigning, prosecutors are exploring possible charges, and the House is moving quickly on impeachment. Fiona Hill served on President Trump’s National Security Council and understands well the battle for truth against alternative facts and delusions.

Following Wednesday's riot at the U.S. Capitol, the Lincoln Project is joining calls for President Trump to resign or be removed from office. Its co-founder Rick Wilson calls the violence “sedition and insurrection,” and speaks with Hari Sreenivasan about what’s at stake.

Eddie Glaude Jr. is a prominent academic on the African American experience and has closely documented systemic racism in America. He joins the show to speak about the Georgia election and what it says about the country.

Democrat Rev. Raphael Warnock will make history as Georgia's first Black senator. In the state’s other senatorial race, Democrat Jon Ossoff is claiming victory against incumbent Senator David Purdue. To discuss this extraordinary political shift in the Peach State, Christiane speaks with Atlanta Mayor Keisha Lance Bottoms.

Today, Congress was tasked with certifying the result of the presidential election -- a process that should have been a mere formality. Instead, thousands of armed pro-Trump demonstrators breached the barriers protecting the U.S. Capitol, calling for a halt to the certification. Paul Rosenzweig, a former high level official at the Department of Homeland Security, joins Christiane to discuss.

According to the Los Angeles County Director of Public Health, people in LA County are dying of COVID-19 at the rate of one every ten minutes. The total number of cases has doubled in just over a month, and health workers are now being asked to ration oxygen. Registered nurse Nerissa Black from Henry Mayo Newhall Hospital tells Hari Sreenivasan what she's seeing from the front lines.

It’s election day once again, but this time only in the state of Georgia. Voters headed back to the polls for another high-stakes vote in the midst of the pandemic. The outcome will determine control of the Senate. Christiane speaks with historian Anne Applebaum and journalist Fintan O’Toole about this and President Trump's repeated attempts to overturn the results of the presidential election.

2020 brought a new focus to the structural racism that persists in America, with books such as "So You Want to Talk About Race" hitting the bestseller list in the wake of George Floyd’s killing. Now, author Ijeoma Oluo has a new book for this time. In "Mediocre: The Dangerous Legacy of White Male America" she explores how society reinforces racial hierarchy regardless of merit.

With 20 million cases and more than 350,000 deaths, COVID-19 has ravaged America while also exposing many of the country’s deepest societal and structural failings. What went wrong – and what lies ahead? Veteran journalist Lawrence Wright has spent these months studying the destruction caused by the virus in America, as reported in his epic piece for The New Yorker titled “The Plague Year.”

The COVID-19 vaccine rollout is struggling to get up to speed. The virus is surging in many countries around the world, and new variants are causing concern amongst scientists. Christiane speaks with virologist Peter Piot who currently acts as adviser to the President of the European Commission on pandemic response.

Of the 20 million vaccinations promised before the new year, just over four million have been administered. Dr. Vivek Murthy is co-chair of President-elect Biden’s COVID-19 Advisory Board, and is set to step back into his former role of America’s surgeon general under the new administration. He speaks with Walter Isaacson about what is holding up the distribution and how to get it back on track.

Ten former defense secretaries have signed an unprecedented letter warning against calling in the armed forces over election disputes. One of the co-signers, former Republican senator William Cohen, joins Christiane to explain the urgency of this issue.

The Georgia senate runoff election on Tuesday will determine the balance of power in Congress -- and President-elect Biden’s capacity to get his legislative agenda through. How likely is it that the state’s two senate seats will flip blue?