When Jimmy Kimmel asked Hillary Clinton in a late-night TV interview about UFOs, she quickly corrected his terminology.
"You know, there's a new name," Clinton said in the March appearance. "It's unexplained aerial phenomenon," she said. "UAP. That's the latest nomenclature."
Known for her grasp of policy, Clinton has spoken at length in her presidential campaign on topics ranging from Alzheimer's research to military tensions in the South China Sea. But it is her unusual knowledge about extraterrestrials that has struck a small but committed cohort of voters.
Clinton has vowed that barring any threats to national security, she would open up government files on the subject, a shift from President Barack Obama, who typically dismisses the topic as a joke. Her position has elated UFO enthusiasts, who have declared Clinton the first "E.T. candidate."
"Hillary has embraced this issue with an absolutely unprecedented level of interest in American politics," said Joseph G. Buchman, who has spent decades calling for more transparency in government about extraterrestrials.
Clinton, a cautious candidate who often bemoans being the subject of Republican conspiracy theories, has shown surprising ease plunging into the discussion of the possibility of extraterrestrial beings.
She has said in recent interviews that as president she would release information about Area 51, the remote Air Force base in Nevada believed by some to be a secret hub where the government stores classified information about aliens and UFOs.
In a radio interview last month, she said, "I want to open the files as much as we can." Asked if she believed in UFOs, Clinton said, "I don't know. I want to see what the information shows." But, she added, "There's enough stories out there that I don't think everybody is just sitting in their kitchen making them up."
When asked about extraterrestrials in an interview in New Hampshire late last year, Clinton promised to "get to the bottom of it."
"I think we may have been" visited already, she said in the interview. "We don't know for sure."
While Americans typically point to issues like the economy and terrorism as top priorities for the next president, a desire for answers about aliens has inspired a passionate bloc of voters, who make their voices heard on social media.
Stephen Bassett, who lobbies the government on extraterrestrial issues, views a Clinton presidency as a chance to finally get the United States to disclose all it knows about life beyond Earth. Since November 2014, Bassett's organization has sent roughly 2.5 million Twitter messages to presidential candidates, elected officials and the media urging a serious discussion of the issue.
"That was a storm and now it's like a steady drip," Bassett said.
The movement viewed Clinton's decision to correct Kimmel's use of the term UFO, which some view as loaded and more rooted in science fiction rather than in science, in particular, as a breakthrough because it "suggested she'd been briefed by someone and is not just being flippant," Buchman said.
In fact, Clinton had been briefed. She was prepped by her campaign chairman, John D. Podesta, who is not only a well-respected Washington hand, having served as a top adviser to Obama and President Bill Clinton, but is also a crusader for disclosure of government information on unexplained phenomena that could prove the existence of intelligent life outside Earth.
"The time to pull back the curtain on the topic is long overdue," Podesta wrote in his foreword for the 2010 book UFOs: Generals, Pilots and Government Officials Go on the Record by Leslie Kean, an investigative journalist.
Hillary Clinton's position is not a political response to public sentiment — 63 percent of Americans do not believe in UFOs, according to an Associated Press poll. Clinton, who speaks frequently about her childhood aspirations to be a NASA astronaut, has been sympathetic to Podesta's efforts.
In 1995, when she was photographed visiting Laurance S. Rockefeller, the billionaire philanthropist, in Jackson Hole, Wyoming, she had tucked under her arm a copy of Are We Alone?: Philosophical Implications of the Discovery of Extraterrestrial Life by Paul Davies.
Before that meeting, John H. Gibbons, former director of the White House Office's of Science and Technology Policy, had warned Clinton about Rockefeller, who had spent years pressuring the government to release files relating to a 1947 crash at a ranch near Roswell, New Mexico, that had become the source of theories about a cover-up of an alien spaceship. He will "want to talk to you about his interest in extrasensory perception, paranormal phenomena and UFOs," Gibbons wrote.
When Clinton started to talk openly about UFOs and government disclosure in her 2016 campaign, some activists traced the remarks back to the 1995 meeting with Rockefeller.
To this subset of Americans who say the government is covering up what it knows about aliens, and who are incredibly vocal on social media, Clinton's discussion of extraterrestrials signaled an important turn.
Other activists do not care as much about Clinton's vow to "open the files," but do want prominent politicians to seriously acknowledge that humans may not be the only intelligent life in the universe. A major victory, some say, would be for the candidates to be asked about the topic in a presidential debate.
"It shouldn't be a source of embarrassment to discuss it," said Christopher Mellon, a former intelligence official at the Defense Department and the Senate Intelligence Committee.
"We should be humble in terms of recognizing the extreme limits of our own understanding of physics and the universe."