 Coming up in our top stories, President Biden says it's time for the calls for him to step aside as the party's nominee for reelection to end. He sent a letter to congressional Democrats. World leaders coming to town this week for the NATO summit, and that means a lot of road closures. Security fencing has gone up along the ellipse near the White House. Keep it here. We've got full details coming your way in minutes. WTOP at 1248.