The inauguration marks the official transfer of presidential power, with the executive branch changing hands from the Biden administration to the Trump administration. The 20th Amendment states that a president's four-year term ends at noon on Jan. 20, and the president-elect is sworn in shortly after.

President Donald Trump’s oldest grandchild Kai Trump gave a behind-the-scenes look at his historic Inauguration Day festivities that capped off the “experience of a lifetime.” “Today my grandpa becomes president of the United States again — let’s go!

Donald Trump's granddaughter, Kai Trump, continues to make waves on social media. Kai Trump, the high school senior granddaughter of the President of the United States, has developed a big-time following on social media.