NASA astronaut Chris Cassidy and two cosmonauts head home to close out action-packed space flight. Source

Former President Barack Obama hit the campaign trail Wednesday, holding his first in-person event for Joe Biden in Philadelphia. Biden is hoping to flip Pennsylvania back to blue after President Trump won it in 2016. Ravi Gupta, a former member of the Obama administration and campaign team, joined CBSN’s “Red & Blue” to discuss the state of the Biden campaign and Democratic Party. Source

Republican Senator Lindsey Graham is skipping the final debate in South Carolina Wednesday to focus on confirming Judge Amy Coney Barrett to the Supreme Court. Polls show Graham is in a tight race with Democratic challenger Jaime Harrison. Jamie Lovegrove, South Carolina political reporter with The Post and Courier, joined CBSN’s “Red & Blue” to discuss the latest on the race. Source

The man was caught on a Ring door camera leaving the note threatening to kill Biden and Harris at a Maryland house. Source

Hundreds of parents and children who were separated at the U.S. border under the Trump administration’s “zero tolerance” policy remain unaccounted for. Manuel Bojorquez takes a closer look. Source

Former President Obama appeared at a drive-in rally in Philadelphia on Wednesday evening. Source

Images from the spacecraft give researchers confidence an attempt to collect samples from an asteroid was successful. Source

The number of coronavirus patients has tripled over the past month at Aurora St. Luke’s Medical Center — the largest hospital in Wisconsin. Adriana Diaz reports in this CBS News exclusive. Source

A UCLA study estimates that 42% of eligible transgender voters don’t have the correct identification. Source

A 14-year-old from Texas hopes to one day save lives with her research on a potential treatment for the coronavirus. Mireya Villarreal shares her story. Source