Joe Biden and Kamala Harris have been sworn in as the president, vice president of the United States.
He(Biden) becomes the 46th president, taking over from Donald Trump who presided the country for only four years.
While Kamala Harris Becomes the first female vice president in the united States
They were sworn in at an inauguration ceremony in Washington DC, which was attended by previous and current leaders in the US.
John G. Roberts, the chief justice of the United States, administered the oath of office on them.
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