ABC News - World News Tonight with David Muir
Nov 9, 2020 Pfizer says its human trials for a coronavirus vaccine candidate is "90 percent effective" in fighting the virus. Doctor Anthony Fauci calls the test results "extraordinary." More on the drug maker's push to have an emergency use authorization from the FDA, and when the rest of the country could have access to the vaccine. The latest COVID outbreak inside the White House: Secretary Ben Carson and the outside advisor leading President Trump's legal challenges both test positive. President-elect Joe Biden outlines how his administration plans to tackle the pandemic, and pleads with Americans to wear a mask. And celebrating the life of Jeopardy! host Alex Trebek.