U.S. President <a href="https://en.wikipedia.org/wiki/Millard_Fillmore" id="mwig" rel="mw:WikiLink" title="Millard Fillmore">Millard Fillmore</a> is sworn in, a day after becoming president upon <a href="https://en.wikipedia.org/wiki/Zachary_Taylor" id="mwiw" rel="mw:WikiLink" title="Zachary Taylor">Zachary Taylor</a>'s death.