Donald Trump is showing his net worth – so is he serious about a WH run? I interview him right after his announcement.— GeorgeStephanopoulos (@GStephanopoulos) June 16, 2015
The businessman and television personality had hinted strongly at his run Monday on his social media accounts. He posted a video on Instagram with a potential slogan, "Let's Make America Great Again."
As part of the announcement, Trump is expected to release a summary of his assets, estimated to total about $9 billion.
Should he announce a run, Trump is expected to participate in the first Republican debate on Aug. 6. A maximum of 10 spots are given, reserved for GOP candidates with the highest approval in the polls.
Former Florida Gov. Jeb Bush announced he was running Monday, joining a Republican field of 11 major candidates that includes Rick Perry and Marco Rubio. Former Secretary of State Hillary Rodham Clinton is the clear favorite in the less crowded Democratic contest that also includes Bernie Sanders and Martin O'Malley.
George Stephanopoulos' interview with Donald Trump will air Tuesday on World News Tonight.
ABC News and the Associated Press contributed to this report.