What is the US presidential inauguration and who will be there? President-elect Joe Biden (Evan Vucci/AP) President-elect Joe Biden has arrived in Washington DC ahead of his inauguration ceremony that will draw a line under four years of Donald Trump’s administration. Mr Biden will look to heal the country following an election that became entrenched as Democrats and Republicans fought bitterly over the outcome of the vote. (PA Graphics) The requirement is for the president-elect to recite the presidential oath of office. “I do solemnly swear that I will faithfully execute the Office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States.”