With the inauguration of President-elect Donald Trump set to take place next Monday, White House insiders revealed that the mood was somber as Jill Biden prepared for her final week as president. After spending four years as the chief executive of the United States, Jill was reportedly winding down her daily itinerary and taking what sources described as a "bittersweet" inventory as she got ready to no longer be the person running the country. "Not being President is going to be a big change for her," said one insider. "It's just what she's been used to for so long. She's...