The action described involves a subject (“trump”) performing a physical activity (“sits”) upon an object (“towel”). This construction presents a scenario characterized by a person interacting directly with a common household item. The act of sitting implies a state of rest or intentional placement of weight onto the supporting object.
The significance of such an action, regardless of the individual involved, can stem from the context surrounding the event. It could represent a moment of leisure, a practical necessity after an activity like swimming, or even serve as a symbolic gesture depending on accompanying circumstances and observed behaviors. Historical context surrounding the action may further elaborate the implications.