Joe Biden is sworn in as the 46th US president, assuming helm of a country beset by deep political divides and a raging coronavirus pandemic. In his inaugural address at the nation’s capitol in Washington DC, Biden expressed concerns over the rise in political extremism, white supremacy, and domestic terrorism. He pledged to be a president for all Americans and said he would seek unity. Biden takes office at a moment of profound challenges he is facing at home and abroad. The swearing-in ceremony ended Donald Trump’s turbulent four years in office. However, an a farewell speech at a military base, Trump defended his much-criticized policies, saying his term was incredible and that his administration accomplished a lot.