'Final act as president': Obama leaves note for Trump, exits Oval Office for last time [video]

The presidency of Barack Obama is almost officially over:

Obama departs the Oval for the last time as President pic.twitter.com/KkQaT8uc68

— Zeke Miller (@ZekeJMiller) January 20, 2017

Leaving Oval Office for last time, Pres Obama said "of course" he was feeling nostalgic. Last words to the American people: "thank you."

— Mark Knoller (@markknoller) January 20, 2017

Pres Obama emerges from Oval Office for last time. Walks down colonnade to residence. Waves to press pool. pic.twitter.com/Hj9hQA2etz

— Mark Knoller (@markknoller) January 20, 2017

Pres Obama followed down the colonnade by @VP and @DrBiden44. Also greeting successors for coffee. pic.twitter.com/ONI07zTk2w

— Mark Knoller (@markknoller) January 20, 2017

Obama left a letter for his successor before leaving the Oval Office:

President Obama leaves a letter for President Trump in the Resolute desk drawer and leaves the Oval Office for the final time pic.twitter.com/5iM4ljmIV7

— Bradd Jaffy (@BraddJaffy) January 20, 2017

President Obama's final words to the American people as he exits White House: "Thank you" https://t.co/rIHWMyt9S0 https://t.co/v9rDq9CjPi

— CNN Politics (@CNNPolitics) January 20, 2017

President Obama​ leaves the Oval Office for the final time. #InaugurationDay pic.twitter.com/tRKoYmDzud

— Fox News (@FoxNews) January 20, 2017

The Obamas then greeted the Trumps at the White House ahead of the inauguration:

LIVE NOW: Pres. Obama's final act as President, leaving a letter in the Oval Office for the next President of the United States. pic.twitter.com/kv3vxHsvtw

— Good Morning America (@GMA) January 20, 2017

The Obamas and the Trumps pic.twitter.com/nBEBojtczP

— Zeke Miller (@ZekeJMiller) January 20, 2017

At the WH: President Elect Trump and Melania Trump are greeted by President Obama and Michelle Obama. pic.twitter.com/UQ9gbhv42x

— Jim Acosta (@Acosta) January 20, 2017