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After nearly 20 years, the U.S. pulls up its last troops and ends its war in Afghanistan. Hurricane Ida leaves large parts of Louisiana powerless. And jury selection begins in the trial of Theranos founder Elizabeth Holmes.

Hurricane Ida whips through New Orleans, knocking out power and overwhelming low-lying areas. The US makes two military strikes against what it describes as ISIS-K targets. And a report on the origins of COVID-19 fails to provide clear answers about whether the coronavirus resulted from animals or humans.

A terror attack in Kabul kills at least 13 American service members, along with dozens of Afghan nationals.

The U.S. accelerates its withdrawal, prompting questions about whether informal networks will still ferry Afghans out of the country. New data show rental relief still isn't making its way to landlords. And a lawsuit claims a gun popular with law enforcement has gone off randomly.

After President Biden refuses to extend a withdrawal deadline, ex-military staff scramble to rescue their former colleagues in Afghanistan. Congress averts an infrastructure breakdown -- for now. And new data from the CDC show that pregnant women are largely declining to get vaccinated.

The FDA gives full approval to Pfizer's coronavirus vaccine. Tennessee flooding flummoxes weather experts. And a Capitol Police investigation finds that an officer was justified in shooting a member of the mob who burst through a door on January 6th.

In an exclusive interview, ABC's Martha Raddatz asks Secretary of Defense Lloyd Austin how far the US will go to guarantee safe access to the Kabul airport. The FDA is poised to fully approve the Pfizer coronavirus vaccine. And California Gov. Gavin Newsom hits the road to campaign for his own job.

As thousands of children are quarantined away from school, economists worry about whether parents will return to the workforce. Afghans begin protests against the Taliban. And airlines are offering regular self-defense courses to embattled flight attendants.

In a special edition of Start Here, George Stephanopoulos recounts his exclusive interview with President Biden. And as chaos descends on Kabul, a young Afghan describes fleeing to America, while her sister is forced into hiding.

Taliban leaders hold a press conference, insisting women will have rights -- "within the limits of Islam." The Biden Administration is expected to recommend booster shots to virtually all Americans. And the trial of R. Kelly begins.