The Associated Press says 63% of Americans do not believe in UFOs. In reporting this at FiveThirtyEight, Walt Hickey added:

Hillary Clinton is apparently not among that number, and she has promised to open up government files on UFOs if elected president. “There’s enough stories out there that I don’t think everybody is just sitting in their kitchen making them up,” she said in a recent radio interview.

If there is anyone who should not be making assumptions based on “enough stories out there,” it’s Hillary Clinton — whose un-likability and untrustworthy numbers are based entirely on stories that have been told about her for the last quarter-century by her political opponents.

I’d also add that, by its strict definition, no one can deny there are UFOs — unidentified flying objects. But just because you can’t identify something doesn’t automatically mean it has aliens inside. For that, you need actual evidence, none of which has ever been presented. Probably because it doesn’t exist, despite those “stories.”