*It is now official. Donald John Trump was sworn in Friday as the 45th president of the United States, taking office on a day that has featured smaller crowds and more subdued ceremony than previous inaugurations — but still ushers in a transformative shift in the country’s leadership.

Trump, 70, was administered the oath by Chief Justice John G. Roberts Jr. His wife Melania Trump stood at his side. The oath was given using two Bibles — one from President Lincoln’s inauguration, and another that Trump’s mother gave him in 1955.

Earlier on Friday morning, Trump met with outgoing President Barack Obama at the White House — an Inauguration Day tradition, made more unusual this time by the two men’s history.

Trump, a real estate businessman and reality-TV star, began his rise in conservative politics by essentially calling Obama a liar and an illegitimate president: Trump insisted for years that Obama was born in Kenya. Obama was actually born in Hawaii, as Trump conceded late in the 2016 campaign. Obama, in turn, had mocked Trump at a televised White House Correspondent’s Association dinner in 2011.

Get the full story at Washington Post via MSN News.