Up First

On the first day of former President Donald Trump's second impeachment trial, the Senate voted that the trial of a former president is constitutional, setting up days of arguments from House managers and Trump's defense team. Also, the U.S. military will pause normal operations to examine the problem of domestic extremism within the military ranks. And, Twitter is testing a new pilot program to try and get the spread of misinformation on the platform under control.

Did former President Donald Trump incite the riot at the Capitol on January 6? That's the case House impeachment managers will attempt to prove as the second impeachment trial of the former president begins today. Also, we take a look at what many of those who have been arrested and charged with crimes related to the attack have said in their own words. And, why did Mexico's ambitious coronavirus vaccination plan fall apart?

The second impeachment trial of former President Donald Trump begins this week as Republicans and his legal team argue the impeachment is unconstitutional. And, South Africa has paused a planned deployment of a coronavirus vaccine from AstraZeneca after a study there showed it may be less effective against a new strain of the virus detected there. Also, how worried are U.S. health officials about variant strains of the virus in the U.S.?

From Montréal to Edinburgh, and from São Paulo to Taipei: in this bonus episode from NPR's international podcast Rough Translation, stories about belonging, or longing to just be.

President Biden is pushing to get his $1.9 trillion COVID-19 aid bill through Congress even if Republicans aren't happy. As loopholes appear in the vaccine rollout, bioethicists tell us who should get a shot. The Tampa Bay Buccaneers and the Kansas City Chiefs face off in Sunday's Super Bowl.

President Biden announced the U.S. will no longer support offensive military operations led by Saudi Arabia in Yemen, reversing a policy started by the Obama administration. And, a new model by researchers at Columbia University paints what they say is a more accurate picture of the spread of the pandemic. Also, voting technology company Smartmatic is suing Fox News and some of its biggest stars alleging they spread disinformation that devastated the company.

Today the House will vote on a resolution that would expel freshman Republican Marjorie Taylor Greene from two committees after Republicans chose not to reprimand for her support of QAnon and other conspiracy theories. And, President Biden will lay out his foreign policy plans in a speech at the State Department today. Also, more college students are taking in-person classes this spring even as coroanvirus cases are up in every state.

House GOP leaders are dealing with divisions on two fronts, including how to deal with freshman Rep. Marjorie Taylor Greene and her incendiary comments and support for conspiracy theories. And, the second impeachment trial of former President Donald Trump begins next week and House managers have detailed their case that he is singularly responsible for the Capitol insurrection. Also, Jeff Bezos is stepping down as CEO of Amazon after 27 years at the company he founded.

President Biden is set to sign a series of executive actions on Tuesday to begin to reunite migrant children separated from their parents after crossing the U.S. border and address other immigration issues. Also, Japan is extending a state of emergency to get the country's coronavirus outbreak under control. And, a court will decide today whether to keep Russian opposition leader Alexei Navalny in jail.

President Biden has invited Senate Republicans to the White House to hear their response to his proposed $1.9 trillion relief package. Also, in Myanmar the military has staged a coup and taken control of the civilian government. And, protests in Russia continued for a second weekend over the jailing of opposition leader Aleksei Navalny.