CNN Amanpour.

Danny Weiss, former chief of staff to House Speaker Nancy Pelosi, and Jonathan Burks, former chief of staff to House Speaker Paul Ryan, join Christiane Amanpour to give their impeachment analysis from both sides of the aisle. As Democrats and Republicans are lay out their opening arguments for and against the impeachment of President Trump they unpack why communication is not working between the two parties. João Doria, the Governor of São Paulo, speaks from the World Economic Forum in Davos where climate is the key theme. He discusses the climate crisis as well as President Bolsonaro's leadership in Brazil. Our Michel Martin sits down with poet Reginald Dwayne Betts to talk about his new book "Felon" which highlights the power of words when behind bars.

Joseph Stiglitz, the Nobel Prize-winning economist, joins Christiane Amanpour from the World Economic Forum in Davos, Switzerland to explain why President Trump is misleading the public with the metrics he is using to measure the growth of the U.S. economy. He also lays out the case for listening to climate change scientists and creating a green economy that will lead way to the boom it is yet to see. Noah Feldman, constitutional scholar, unpacks the case for impeachment against Trump and how the Senate, led by majority leader Mitch McConnell, are likely going to conduct their partisan trial. Our Hari Sreenivasen sat down with John P. Carlin, former U.S. Assistant Attorney General for National Security, to discuss the ever-rising threat cybercrime poses to democracies around the world.

Evelyn Farkas, former Deputy Assistant Secretary of Defense for Russia, and Dimitri Simes, CEO and President of The Center for the National Interest, join Christiane Amanpour to discuss the start of Trump's impeachment trial in the senate as the President readies himself for the World Economic Forum in Davos. Simes and Farkas dig down into U.S. relations with Russia and the rest of the world. Steve Inskeep, NPR host, discusses his new book "Imperfect Union," that tells the story of America's first political power couple, John and Jessie Fremont. In 1856 John was the first ever Republican nominee for president and the campaign was dominated by immigration, race, and political demagoguery. Inskeep reflects on the parallels with today's politics. Sarah Hurwitz, White House speechwriter for President Barack Obama and First Lady Michelle Obama, has turned her focus from politics to Judaism in her book "Here All Along." She sits down with Our Michel Martin to explain why she thinks the Jewish faith, that she was born into, can help us in these divisive times.

Peggy Orenstein, author of "Boys & Sex", joins Christiane Amanpour to discuss why she's turning her attention from the sexual experiences and education of young girls to boys. She explains why we need to give boys the opportunity to express their vulnerability and stamp out the toxic locker room banter that is so pervasive amongst them. Father Greg Boyle reflects on starting up Homeboy Industries in Los Angeles; the largest rehabilitation program in the world for active gang members. He speaks passionately about breaking the cycles of abuse and violence that grips these gang members, through a process of tenderness, learning and spirituality. Then - our Hari Sreenivasan sat down with Dan Buettner, founder of the Blue Zones Project and National Geographic fellow to talk about his well-being improvement initiative launched in over 40 cities across the United States. As part of the initiative he was inspired to create a cookbook, "The Blue Zones Kitchen," drawing on all those cities had to offer.

Vadym Prystaiko, the Ukrainian Foreign Minister, joins Christiane Amanpour to talk about the explosive interview from Lev Parnas, an associate of Trump's lawyer Rudy Giuliani. Parnas seemed to confirm the White House's effort to intimidate the President of Ukraine into providing dirt on Democratic candidate Joe Biden. Prystaiko discusses the international crises that Ukraine has been inadvertently dragged into; from the impeachment of Donald Trump to the Ukrainian airliner shot down in Iran. Andrew Forrest, founder and chairman of Fortescue Metals, talks about the devastating wildfires in his home Australia. Forrest donated $48 million in aid - but as a mining magnate he has a complicated history with the contributing factors to climate change and by extension these very fires he is helping to put out. Our Walter Isaacson sits down with Henry Louis Gates, Jr., the host of "Finding Your Roots," to discuss his Emmy award-winning show and the array of celebrities he has helped piece together their ancestry.