President Joe Biden holds a pen as he prepares to sign a series of orders in the Oval Office of the White House in Washington, DC, after being sworn in at the US Capitol on January 20, 2021. (Photo by JIM WATSON/AFP via Getty Images) WASHINGTON - President Joe Biden took the oath of office Wednesday, and with new presidents come new White House decorations – especially in the commander-in-chief’s official workplace.And so it’s no surprise that staffers have moved around a lot of things, from artwork to the carpeting inside the Oval Office.One change the Biden administration made was to remove the military flags that had been on display during Donald Trump’s term in office.RELATED: Biden says Trump left 'very generous' letter for him before.