Former President Barack Obama said the U.S. is "dangerously close to normalizing behavior" from government officials that is not compatible with liberal democracy, and "consistent with autocracies."

Former President Barack Obama took to social media on Sunday to address immigration as protests against Trump's overhaul of immigration continue to grip the nation.

The Obama family is marking Sasha Obama’s birthday with a celebratory and rare family photo.

Barack Obama praised Harvard for its rejection of President Donald Trump's demands as the university faces a funding freeze for alleged inaction on antisemitism.

Barack Obama praised Harvard for its rejection of President Donald Trump's demands as the university faces a funding freeze for alleged inaction on antisemitism.

Michelle Obama addressed divorce rumors in part two of her conversation with Sophia Bush on the podcast, "Work in Progress."

Michelle Obama addressed divorce rumors in part two of her conversation with Sophia Bush on the podcast, "Work in Progress."

Former President Barack Obama and former Vice President Kamala Harris, in separate remarks on Thursday, criticized President Donald Trump and the White House.

Former President Barack Obama delivered remarks on Thursday at Hamilton College, in which he urged citizens to stand up for American ideals such as equality and the rule of law.

Barack Obama photobombed two children posing for a photo by Washington, D.C.'s iconic cherry blossoms.

Portia Moore was taking a photo of her children surrounded by the blooming cherry blossom trees in Washington, D.C., when the former president accidentally stepped into the shot.

Donald Trump shook hands with Mike Pence at Jimmy Carter's state funeral -- a notable exchange as the two men have not interacted publicly in years.

Former president Barack Obama and President-elect Donald Trump speak inside Washington National Cathedral.

A Secret Service agent assigned to Barack Obama was breaching security while leading a double life, according to a memoir by the agent's former girlfriend.

Former President Barack Obama, while campaigning in the battleground state of Wisconsin, said America needs a new leader like Vice President Kamala Harris.

Former President Barack Obama said it's a challenge for him and wife Michelle Obama to help their daughters, who he said are "very stubborn" about making it on their own.

Fallout continues over racist comments made at Trump's big rally on Sunday at Madison Square Garden.

Vice President Kamala Harris is calling upon former President Barack Obama and an array of celebrity supporters to drive voters to the polls with less than two weeks until the election.

Vice President Kamala Harris campaigned with former President Barack Obama for the first time Thursday night in must-win Georgia at a star-studded rally.

Barack Obama introduced Kamala Harris as the two campaigned together for the first time at a star-studded rally in Clarkston, Georgia.

With just 12 days left in the campaign, Harris on Thursday will do local media interviews in Georgia before a 8 p.m. ET rally with former President Barack Obama and concert with Bruce Springsteen.

Rapper Eminem took the stage in his home state of Michigan to introduce former President Barack Obama at a campaign event for Vice President Kamala Harris.

Former President Barack Obama made the comments during a speech at a rally in Madison, Wisconsin Tuesday afternoon.

President Joe Biden capped a somber yet celebratory funeral for Ethel Kennedy on Wednesday in Washington, D.C.

Walz will be in North Carolina on Thursday with Clinton and then with Obama next Tuesday in Wisconsin-- corresponding to the states' first days of early voting.

The Powerhouse Roundtable breaks down the latest news on “This Week.”

ABC News contributor Mike Muse on the vice president deploying her top surrogate on the campaign trail.

The former president began a multi-state campaign tour in Pittsburgh Thursday night.

He began a multi-state campaign tour in Pittsburgh Thursday night.

The former president calls on young people to vote during a Thursday night rally in Pittsburgh. Donald Trump brought his economic message to Detroit, insulting the city.

ABC News’ Karen Travers and Katherine Faulders with the latest news from the campaign trail.

Former President Barack Obama will hit the campaign trail for Vice President Harris and Minnesota Gov. Tim Walz starting next Thursday, Oct. 10, through election day.

One of former President Barack Obama’s longest-serving speechwriters, Terry Szuplat now sharing his valuable lessons in new book.

Vice President Kamala Harris will hold a fundraiser in Los Angeles on Sept. 29, according to an invite obtained by ABC News.

LeBron James, Jayson Tatum and more star in the new series, which chronicles life through an NBA season with behind-the-scenes footage.

Terry Szuplat spent eight years as one of former President Barack Obama’s speechwriters.

They held nothing back in going after former President Donald Trump.

When former President Barack Obama takes the stage at the DNC Tuesday to laud Vice President Kamala Harris, it will mark a full circle moment between the two Democrats.

ABC News roundtable breaks down the highlights and speeches of the second night of the Democratic National Convention.

The former president spoke during the second day of the Democratic National Convention in Chicago.

The former president warned against a second Trump presidency, saying, "The sequel is usually worse."

The former president said of Biden: "I am proud to call him my president, but I am even prouder to call him my friend."

Former President Barack Obama and former First Lady Michelle Obama speak at the DNC on Tuesday, highlighting their 20-year friendship with Harris.

Former President Barack Obama officially endorses Vice President Kamala Harris as the Democratic Party's 2024 nominee.

Former President Barack Obama and Michelle Obama have thrown their weight behind Vice President Kamala Harris as she finishes her first week as a presidential candidate.

Former President Barack Obama has privately told allies in recent days that Joe Biden's path to victory has greatly diminished.

Former President Barack Obama says his daughters are not likely to follow in his footsteps into a career in politics.

The former first daughters were interviewed for the Netflix documentary “Becoming,” about their mother Michelle Obama, which was released overnight.

Sasha graduated from University of Southern California last May.

President Joe Biden is holding a fundraiser in New York with former Presidents Barack Obama and Bill Clinton. Former President Donald Trump is also in New York at the wake of a slain NYPD officer.