Two years after Caitlyn Jenner made global headlines in an interview with Diane Sawyer, the pair will reunite for a new interview.

In 2015, Jenner announced for the first time publicly that she was a transgender woman during that exclusive interview with Sawyer that ended months of speculation.

“I am a woman,” Jenner, then known as Bruce, told Sawyer.

“How do I tell people what I've been through? Today's the day,” the Olympian added.

Jenner, a Republican, has been criticized for her support of President Donald Trump. While she never endorsed his campaign, Jenner has said that she wants to educate Republicans on transgender issues.

(Related: Caitlyn Jenner calls out Trump, Jeff Sessions on revoked transgender protections.)

ABC will air the new interview during a special edition of 20/20 on Friday, April 21, just days before Jenner's memoir, The Secrets of My Life by Grand Central Publishing, hits bookshelves.