Final answer:
The fitting word to complete the sentence is 'influential', highlighting the subject's significant impact on White House affairs despite seemingly being an unimportant member of the presidential entourage. The role of individuals within the First Family, such as First Ladies, has evolved to include active public and political participation beyond traditional expectations.
Step-by-step explanation:
The correct way to complete the sentence is: 'She seemed to be an unimportant member of the president's entourage but actually she played an influential role in White House affairs.' This sentence suggests that despite the initial perception of her as unimportant or peripheral, she was actually a key player in the workings of the White House. The evolution of roles within the presidential entourage, including that of the First Lady, has seen individuals playing significant and sometimes public political roles, influencing policies and social initiatives. Historic examples include Lady Bird Johnson, Nancy Reagan, and Hillary Rodham Clinton whose activities ranged from campaign efforts to policy development, and in some cases, like that of Eleanor Roosevelt, setting the precedent for more publicly active First Ladies. The influence exerted by those close to the president, including cabinet members and First Ladies, often stems from their personal relationships with the president rather than the official power of their positions. This dynamic has been evident throughout history and remains relevant today.