After the assassination of Haiti’s president, a nation in turmoil and a doctor jailed.

A Haitian doctor living in Miami was jailed in Haiti in connection to the killing of President Jovenal Moïse, whose death has further stoked an existing crisis in Haiti and created a power vacuum.

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Team USA reaches medal podium

Team USA reaches medal podium

America’s first gold medal was awarded to swimmer Chase Kalisz.

Rescuers jump into action after car plows into mother and baby.

Rescuers jump into action after car plows into mother and baby.

The mother and her child were seriously injured but are expected to survive.

Chicago experiences extremely violent weekend

Chicago experiences extremely violent weekend

Fifty-five people were shot across the city leaving seven dead.

Speaker Pelosi plans to name more Republicans to Jan.

Speaker Pelosi plans to name more Republicans to Jan.

George Stephanopoulos interviews Speaker Nancy Pelosi, D-Calif, on "This Week."

'One Nation Under Fire': One week of gun violence in America - ABC News.

'One Nation Under Fire': One week of gun violence in America - ABC News.

Chief Justice Correspondent Pierre Thomas chronicles one week of gun violence in America. #ABCNews #ThisWeek #GunViolence