Two-time failed presidential candidate Hillary Clinton said she is under "enormous pressure" from "many, many, many people" to run for president in 2020.

"I, as I say, never, never, never say never. I will certainly tell you I'm under enormous pressure from many, many, many people to think about it," Clinton said during an interview on BBC Radio 5.

The comments, first reported by Politico, come in the wake of former New York City mayor Michael Bloomberg's entrance into the crowded Democratic primary. The billionaire's candidacy sparked further speculation that other politicians could decide to enter the race with a focus on Super Tuesday states instead of early primaries.

A BBC presenter asked Clinton if she felt she had "unfinished business" following her electoral defeat in 2016.

"I do. As an activist, advocate, citizen," Clinton responded.

"I never say never to anything," she added. "I think all the time about what kind of president I would have been, and what I would have done differently, and what I think it would have meant to our country and the world. So of course I think about it."

Clinton did clarify that a third run for president is "absolutely not in my plans" at this moment.

In early October, President Trump tweeted a challenge to Clinton to enter the race to "try and steal it away from Uber Left Elizabeth Warren." "The Crooked one must explain all of her high crimes and misdemeanors including how & why she deleted 33,000 Emails AFTER getting ‘C' Subpoena!" Trump wrote.

"Don’t tempt me. Do your job," Clinton responded on the social media platform.

Don’t tempt me. Do your job. — Hillary Clinton (@HillaryClinton) October 8, 2019

Former Massachusetts governor Deval Patrick is also considering a run for the Democratic nomination due to his concerns about the weakness of the field.

Clinton appeared on BBC radio as part of a media tour to promote her new book, coauthored with her daughter Chelsea, The Book of Gutsy Women.