What type of portraits is Trump planning to move to a hidden stairwell?

The correct answer is the portraits of former presidents. This decision aligns with Donald Trump's documented interest in exhibiting a certain reverence toward presidential history, reflecting on who has held the office before him. The placement of these portraits in a hidden stairwell signals a less formal approach to honoring those past leaders, suggesting a desire to shift the traditional display of presidential recognition in a more private setting.

The context around this decision can further amplify the point. Other types of portraits, such as those of military leaders or historical figures, do not typically hold the same level of direct connection to the presidency itself. Portraits of foreign leaders might also be considered significant in terms of diplomacy but do not represent the lineage of the presidential office in the same way as portraits of former presidents do. Therefore, the focus on former presidents in this particular scenario underscores an intention to highlight the legacy and the continuity of the presidential role, even if it's done in an unconventional manner.