Donald Trump has officially become the 47th president of the United States.
In a special ceremony called an inauguration, President Trump took over from Joe Biden as America’s new leader.
A number of former US presidents, including Mr Biden, attended the ceremony.
It was moved inside the US Capitol building in Washington DC for the first time in 40 years, due to freezing temperatures.
In his first speech as president after swearing the oath, Mr Trump promised to make America “greater, stronger, and far more exceptional than ever before”.
It’s the second time that Mr Trump has taken on the role – having previously served as president before Joe Biden, between 2017-2021.
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