"I mean he's played more golf than most people on the PGA Tour, this guy," Trump said during a 2016 campaign stop in New Hampshire. "What is it, over 300 rounds? Hey, look, it's good. Golf is fine. But always play with leaders of countries and people that can help us! Don't play with your friends all the time."

During a Christmas Eve call with US service members, Trump was asked about his holiday plans.

"I'm at a place called Mar-a-Lago, we call it the southern White House," he said. "I really pretty much work. That's what I like to do."

But Trump has long been known to mix business with pleasure at his golf properties both before and after assuming office.

As the US military carried out airstrikes in Iraq and Syria late Sunday morning, Trump was at his club. It's unclear whether he was playing golf at the time, however, CNN spotted him on the 14th hole approximately two hours after the strikes.

And while the President has repeatedly railed against impeachment on Twitter during his vacation, it's likely the topic has come up on the links, as well. His golf partners have included former Rep. Trey Gowdy on Sunday, Georgia Sen. David Perdue on Saturday, and Senate Judiciary Chairman Lindsey Graham on Monday. Trump was seen in the club's dining room with radio host Rush Limbaugh, his son Eric, and acting chief of staff Mick Mulvaney the previous weekend. He's also been joined by some less political partners, including golf pro Gene Sauers.

As for Trump's second week of vacation, it's likely the pattern will continue -- highs in the 70s and low 80s in the forecast.

UPDATE: This story has been updated after Trump's visit to his golf club on Tuesday.

CORRECTION: This story has been updated to correctly state the location of Trump International Doonbeg.