During another weekend away at one of his golf courses, Donald Trump decided to stop in on a wedding reception.

The US President headed to the Trump National Golf Club in Bedminster, New Jersey, for the weekend, officially to host a fundraiser for one of the state's Republican congressmen, Tom MacArthur.

But on Saturday night the president seemed to be in a partying mood, as he posed for pictures, danced with the bride, and gave a speech, according to the Daily Mail.

Photographs posted to social media showed him smiling with the newly-married couple, and in one it appeared as though he was handing out a signed red cap.

A guest at the wedding told the Washington Post Trump's visit was a whirlwind that lasted just a few minutes.

"It was very brief. He waved to everyone. Everyone obviously got very excited, got out of their chairs and came to take pictures," Sean Burke told the Post.

"The bride came running out and he gave her a big hug and a kiss so she was just ecstatic. And then the groom found out, too... No one knew it was going to happen."

"He walked in and he walked out. It was three to four minutes, max.

"It was very impromptu. It wasn't theatrical."

Trump appearance comes after the course came under fire for including potential presidential appearances as a selling-point in brochures for people thinking about booking the site for a wedding.

"If he is on-site for your big day, he will likely stop in & congratulate the happy couple," a brochure read, the New York Times reports.

"He may take some photos with you but we ask you and your guests to be respectful of his time & privacy"

After the Times story was published, a spokesman for the course said the brochure had been discontinued.

It is unclear if the President pulled on his white polo and played 18 this weekend - which, if he did, would mark the 25th time he has since taking office.

Based on his ultra-frequent outings, Trump - according to Golf News - is on track to play 387 rounds of golf over the next eight years, assuming he remains President for the full time and keeps up his current pace.

Barack Obama, who Trump routinely attacked for playing too much golf while in office, played 306 rounds as President, Golf Digest reports.

Obama's tally is almost 21 per cent below the number Trump is tracking towards.

The fundraiser for MacArthur comes as the Republican faces pressure ahead of his re election fight in 2018.

MacArthur has been met with protesters and angry constituents over his role in helping pass Trump's desired Obamacare overhaul, which is currently stuck in the Senate.

The New Jersey congressman was one of the two Republicans from five in the state who backed the controversial would-be legislation.

The Congressional Budget Office estimated the House bill would leave 23 million fewer people with insurance by 2026.