The president’s comments came in a Father’s Day-themed interview streamed on the president's election campaign website, with Don Trump Jr, who hosts the podcast, 'Triggered'.
Trump Jr. put some politics questions to the president and some others that were billed as those “any son would ask their dad."
“I won’t talk to you about what I know about it, but it’s very interesting”, said Mr Trump when asked whether or not he would “let us know what’s really going on” in Roswell, New Mexico, where some claim a UFO crashed in 1947.
"So many people ask me that question," he added. "There are millions and millions of people who want to go [to Roswell] and see it.
Asked whether he might reveal more information on aliens whilst in office, Mr Trump responded: “Well, I’ll have to think about that one”.
The president instead admitted that Twitter, which has started to label his posts with misinformation warnings, was a good way to connect with people.
“I don’t call it Twitter, I call it social media,” he added. “And it’s a way of getting out to the world”.
“Sometimes you say things you probably regret,” said Mr Trump, who then turns to Trump Jr, and asks: “How often does that happen to you?”.
“There are probably times I regret,” says Trump Jr., who then adds that sometimes apologising can be worse, and says: “sometimes taking it back rather than just owning it, is actually worse”.
President Trump received endorsements from Veterans and First Responders, meanwhile Joe Biden got an endorsement from Osama Bin Laden.
Amazing Ad that just premiered on @DonaldJTrumpJr’s ‘Triggered’ pic.twitter.com/Rlr9gFzO24
— Benny (@bennyjohnson)
The president was then asked about documents seized in the raid that killed Osama Bin Laden in 2011, which detailed al-Qaeda plans to assassinate Barack Obama and install Biden as president.
“He [Bin Laden] wanted to assassinate president Obama because he would put Joe Biden in charge”, said Don Jr, who added: “and essentially, he’s so grossly incompetent that it would lead to the destruction of America”.
Trump Jr. then claimed the documents were a posthumous endorsement of the Democratic presidential candidate, despite Obama officials having denied the threat at the time.
“We’re going to immediately make a commercial out of that if that’s true”, the president responded. “Say no more, it’s a great commercial because it happens to be true”.
Trump Jr. then unveiled a commercial as “Father’s Day present," calling Biden “China’s candidate, Iran’s candidate and Osama’s candidate.”