The White House communications team typically declares a full lid once the president's daily schedule ends without further public events, remarks, or statements, allowing staff to close press operations for the evening. For the May 18-23 window, trader assessments center on standard weekday routines interrupted by any late-afternoon policy updates, bilateral meetings, or travel departures that could delay the cutoff past 6:30 PM. Historical patterns during similar non-holiday weeks show lids called on most days absent major announcements, while legislative activity on Capitol Hill or executive actions often extend availability. No major summits or international travel appear scheduled in this period, though unexpected developments such as congressional negotiations or agency briefings could shift the timing and affect daily resolution.