President Biden's daily public schedule, released each morning via White House press announcements, remains the dominant factor shaping full lid calls by 6:30 PM ET, as early closures typically follow days without evening events like speeches or meetings. Recent developments show lids before 6:30 PM on March 21 and 22 amid routine domestic briefings, but delays on March 20 due to a late Oval Office session. For March 23-28, traders eye lighter midweek calendars featuring standard staff meetings on the 25th and potential campaign travel on the 26th, contrasted with quieter weekend prospects on 23rd-24th around Easter observances. Unannounced additions, such as diplomatic calls or media interactions reported by the press pool, could extend the day, underscoring schedule fluidity's impact on probabilities.