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Kamala Harris became the first woman of color to be vice president of the United States.

Lester Holt reflects on an Inauguration Day like no other — held during a pandemic and with heightened security after the Capitol riot. Plus, the challenges facing our nation.

President Biden signed several executive orders on his first day in office.

President Biden’s personal journey has been marked by tragedy, resilience and a commitment to family and faith.

Jen Psaki, the Biden administration's press secretary holds the first White House press briefing.

Newly-minted Senate Majority Leader Chuck Schumer addresses the Senate for the first time since the inauguration of Vice President Kamala Harris and the swearing-in of Democratic Senators Alex

As he walked to the White House, President Biden ran over to NBC's Al Roker give him a fist bump and said it "feels great" to be sworn in as president.

Joe Biden arrives at the White House for the first time as president of the United States with first lady Jill Biden.

Take a looks at the U.S. inaugurations where Presidents were unseated after just serving one term.

President Joe Biden and Vice President Kamala Harris along with former Presidents Barack Obama, George W.

Memorable inaugural addresses often give a nod to history. Exceptional ones often make it. Here are some of the most memorable lines from recent decades.

NBC's Andrea Mitchell discusses President Joe Biden's inaugural address, discussing how he "confronted the difference between lies and truth." » Subscribe to NBC News

During the rotunda gift giving ceremony at the Capitol, Sen.

Reverend Father Leo Jeremiah O'Donovan delivered an invocation prayer during the inauguration of Joe Biden.

Vice President Kamala Harris and her husband Doug Emhoff escorted former Vice President Mike Pence and his wife Karen Pence from the Capitol after President Joe Biden was inaugurated.

President Joe Biden participated in a signing ceremony at the Capitol for an Inauguration Day proclamation and to formally submit cabinet nominations to Congress.

Sen.

President Joe Biden called for an end to the "uncivil war" between Republicans and Democrats in the country with hopes to address the crises facing the country.

During his inauguration address, President Biden urges Americans to come together and says, “with unity we can do great things, important things.

"President Joe Biden delivered his inaugural address with emphasis on a call for unity among Americans to combat the Covid-19 pandemic, work towards economic recovery and end partisan divides.

Amanda Gorman, the youngest known inaugural poet in U.S.

Former Vice President Al Gore spoke about how the inauguration of Joe Biden shows that the United States is peacefully transitioning power between administrations.

President Joe Biden began his inaugural address by referencing the peaceful transition of power by saying that "democracy has prevailed." » Subscribe to NBC News: nbcnews.to/SubscribeToNBC »

Former Vice President Joe Biden is sworn in as the 46th President of the United States.

Kamala Harris was sworn in as vice president, the first woman to hold the office, as Justice Sonia Sotomayor administered the Vice Presidential Oath of Office. » Subscribe to NBC News: nbcnews.

Eugene Goodman, the U.S. Capitol police officer who lead a mob away from an open door to the Senate chamber on Jan. 6, is seen escorting Kamala Harris along with second gentleman Doug Emhoff.

To inaugurate means to commence, begin, or initiate. It is a fresh start. On the day Joe Biden becomes President, NBC’s Joe Fryer breaks down the tradition, ceremony, and history of U.S.

Vice President Mike Pence arrives at the Capitol for the inauguration of President-elect Joe Biden as President Trump lands in Florida after departing Washington, D.C. earlier in the morning.

Past U.S. presidents such as the Clinton, Bush and Obama are seen arriving to president-elect Biden's inauguration ceremony.