In President Biden's first major military action, he orders airstrikes which could reset nuclear talks with Iran. Former President Trump prepares to address a Republican Party grappling with an uncertain future. And new data is revealing the struggle of so-called COVID "long haulers."

In President Biden's first major military action, he orders airstrikes which could reset nuclear talks with Iran. Former President Trump prepares to address a Republican Party grappling with an uncertain future. And new data is revealing the struggle of so-called COVID "long haulers."

Johnson & Johnson releases data showing 85% effectiveness against severe COVID symptoms. Despite widespread frustrations with the mail system, US Postmaster General Louis DeJoy says he's not worried about his job. And baseball analysts debate how to incorporate stats from the Negro Leagues.

Johnson & Johnson releases data showing 85% effectiveness against severe COVID symptoms. Despite widespread frustrations with the mail system, US Postmaster General Louis DeJoy says he's not worried about his job. And baseball analysts debate how to incorporate stats from the Negro Leagues.

More than a month after a deadly attack, Congress hears from witnesses about the preparations for January 6th. Tiger Woods' legs are "crushed" in a car accident. And a majority of Israelis have received at least one vaccine shot, but it's unclear how quickly life will return to normal.

More than a month after a deadly attack, Congress hears from witnesses about the preparations for January 6th. Tiger Woods' legs are "crushed" in a car accident. And a majority of Israelis have received at least one vaccine shot, but it's unclear how quickly life will return to normal.

As the American death toll rises past half a million, families describe the wide ranging impacts of death. A Capitol Police officer speaks exclusively to ABC News about what he saw on January 6th. And authorities have grounded some Boeing 777's to assess whether jet engines are at risk.

As the American death toll rises past half a million, families describe the wide ranging impacts of death. A Capitol Police officer speaks exclusively to ABC News about what he saw on January 6th. And authorities have grounded some Boeing 777's to assess whether jet engines are at risk.

Four million Texans lost power, but in a crisis that could just be beginning, triple the number have lost access to clean running water in their homes. New York governor Andrew Cuomo comes under fire for his handling of nursing home patients in a pandemic. And a string of attacks against Asian Americans have raised tensions between Asians and other minority groups, leaving authorities wary on how to address it.

Four million Texans lost power, but in a crisis that could just be beginning, triple the number have lost access to clean running water in their homes. New York governor Andrew Cuomo comes under fire for his handling of nursing home patients in a pandemic. And a string of attacks against Asian Americans have raised tensions between Asians and other minority groups, leaving authorities wary on how to address it.