Impeachment investigators today will hear from a key figure in President Trump’s effort to get Ukraine to investigate former Vice President Joe Biden and his son. A new poll shows 58% of Americans support the House Democrats’ decision to open an impeachment inquiry. Nancy Cordes reports. Source

The whereabouts of the wife of a U.S. diplomat, suspected of killing a British teenager in a car crash, remains a mystery. Nineteen-year-old Harry Dunn was killed while riding his motorbike in August. Authorities say Anne Sacoolas was driving on the wrong side of the road when she hit Dunn. She then left the U.K. under diplomatic immunity. Imtiaz Tyab reports. Source

Doctors in Pennsylvania are racing to solve a deadly medical mystery. They’re trying to find the source of a bacterial infection apparently linked to the deaths of three babies inside a hospital. Anna Werner reports. Source

Renowned speech advocate Annie Glenn died on May 19 at the age of 100 after a battle with COVID-19. Glenn was the widow of astronaut and U.S. Senator John Glenn, who became the first American to orbit the Earth in 1962. Source

“How do you social distance in the elevator of a public housing unit?” he said. Source

NASA astronauts Bob Behnken and Doug Hurley will be the first to fly SpaceX’s new spaceship on the historic test flight to the International Space Station. Mark Strassmann speaks with Behnken and Hurley. Source

The health agency’s 60-page document provides guidance to schools, child care centers, restaurants and bars, and mass transit administrators. Source

It’s been one year since Gayle King, Anthony Mason and Tony Dokoupil became the new anchor team of “CBS This Morning.” Here’s a look back at some of the past year’s memorable moments. Source

One year after her historic inauguration, Chicago Mayor Lori Lightfoot looks back at her biggest challenges, including guiding the nation’s third-largest city through the coronavirus pandemic. Jericka Duncan reports. Source

Colonel Tom Moore, a WWII veteran who raised more than $40 million for Britain’s health care service, is to be knighted by Queen Elizabeth after being nominated by Prime Minister Boris Johnson. Moore raised the record amount by completing 100 laps of his garden during the coronavirus lockdown. Charlie D’Agata reports. Source