Barack Obama

As the White House transitions from Barack Obama to Donald Trump, in the social-media age that means another transition — of the @POTUS Twitter account.

At 12:01 p.m., as Trump took the oath of office, the official presidential account switched to President Trump from Obama, who was the first president to use Twitter. All tweets from Obama's term as president are archived under a new account @POTUS44.

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KELLY MCEVERS, HOST:

President Obama's final press conference was one of both reflection and subtle rebuke toward incoming President-elect Donald Trump, defending voting rights and a free press, all while reassuring the American people that "at my core, I think we're going to be OK."

The Obama administration is rushing to tie up loose ends before packing up — protecting the rusty patched bumblebee, ending the Cuba "wet foot, dry foot" immigration policy, settling a fraud case over

In a flood of clemency orders before he leaves office, President Obama commuted the sentences of 209 people and pardoned 64 others on Tuesday. The vast majority of offenders had been convicted of drug-related crimes. Two were involved in cases about leaks of government material. And two were cultural stars of past decades who had run afoul of the IRS.

In one of his last moves in office, President Obama has commuted the 35-year prison sentence of Chelsea Manning, the Army private who leaked a massive trove of military secrets to WikiLeaks.

The former intelligence analyst's prison sentence has been shortened to expire on May 17, 2017, according to a statement from the White House.

Russian President Vladimir Putin said Tuesday that the Obama administration is attempting to "undermine the legitimacy" of President-elect Donald Trump.

U.S. intelligence agencies have concluded that the Russian government, at the direction of Putin, hacked several U.S. targets as part of an "influence campaign" to shape the outcome of the election.

The Obama administration is ending a two-decade-old policy that allowed Cuban refugees to enter the United States without visas.

Known as the "wet-foot, dry-foot" policy, it began in 1995 under then-President Bill Clinton in response to a wave of Cubans fleeing the island in boats. The U.S. turned away those who were intercepted at sea ("wet-foot"), while permitting Cubans who managed to get to U.S. soil ("dry-foot") to stay and eventually become legal residents.

President Obama awarded outgoing Vice President Biden the Presidential Medal of Freedom on Thursday afternoon.

Calling the former longtime Delaware senator "the best vice president America's ever had" and a "lion of American history," Obama gave his White House partner the surprise award in an emotional ceremony, initially billed as a farewell.

President Obama will address the nation for what's likely to be the last time Tuesday night. He says the prime-time address from his adopted hometown of Chicago will be a chance to celebrate the successes of the past eight years and to offer some thoughts on where the nation goes from here.

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