As Mike Tyson returns to the ring, a look back at his tumultuous past.

The former undisputed world heavyweight champion is set to return for an exhibition match against former champion Roy Jones Jr. "Nightline" co-anchor Byron Pitts catches up with Tyson about life.

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Reflecting on Trump’s 4 years as president through his tweets.

Reflecting on Trump’s 4 years as president through his tweets.

The president used Twitter to insult and spread conspiracies, to amplify fringe voices, to announce he had COVID-19 and, finally, to encourage insurrectionists before he was deplatformed.

Biden hopes to repair relationship between White House and the media.

Biden hopes to repair relationship between White House and the media.

During his presidency, Donald Trump attacked the media and labeled them “the enemy of the people” in efforts to delegitimize the free press.

Kamala Harris breaks barriers to become 1st female vice president.

Kamala Harris breaks barriers to become 1st female vice president.

Harris will become the first woman of color to hold the second-highest office in America.

President-elect Joe Biden vows to ‘restore the soul of America’.

President-elect Joe Biden vows to ‘restore the soul of America’.

After a tumultuous four years, Biden has promised to turn things around with his new administration.

Amid pandemic, White House gets deep cleaning before handover.

Amid pandemic, White House gets deep cleaning before handover.

ABC News’ Kenneth Moton details the work that will go into moving the Trump family out of the White House and preparing for the arrival of the Biden family.