"Hi, Mr. White ... the President was hoping to reach you by phone when you're available."
That's a real voicemail that Donald Trump's office left for UFC boss Dana White last week ... all because POTUS wanted to shoot the sh*t about the Max Holloway vs. Brian Ortega fight!!!!
"He calls me on Tuesday," White said on Barstool Sports' "Pardon My Take" podcast ... "For 15 minutes he couldn't stop talking about the fight."
By the way, Tuesday was the same day Trump sparred with Chuck Schumer and Nancy Pelosi about possibly shutting down the government during a debate over his border wall.
Unclear if the conversation with White took place before or after the meeting -- but it sure sounded like Trump was in a good mood.
White said Trump praised both fighters for their toughness and called the bout at UFC 231, "The greatest fight I've ever seen."
White and Trump have been friends for decades -- with Dana even giving a campaign speech for Donald at the Republican National Convention.
So, the PMT guys also asked White if he's been asked to be Trump's Chief of Staff ... and while the offer isn't on the table yet -- Dana says he wouldn't turn it down.