President Biden, first lady mark Oct. 7 anniversary at White House

The president lit a memorial candle and observed a moment of silence. Subscribe to ABC News on YouTube: ABC News is your daily source of breaking national and world news, exclusive interviews and 24, 7 live streaming coverage. Download the ABC News app for the latest headlines and alerts: Watch 24, 7 coverage of breaking news and live events on ABC News Live: Watch full episodes of World News Tonight with David Muir here: Read ABC News reports online: ABC News is the home to the, 1 evening newscast World News Tonight with David Muir, Good Morning America, 20, 20, Nightline, This Week with George Stephanopoulos, ABC News Live Prime with Linsey Davis, plus the daily news podcast Start Here. Connect