Donald Trump has insisted the his supporters "far out-numbered" protesters during a visit to the US Women's Open at the Trump National Golf Course in Bedminster in New Jersey - with the President also set to watch the final round on Sunday.

Mr Trump has spent numerous weekends visiting his own properties and golf courses, raising alarms from ethics experts and critics who say he is using the presidency to bolster his properties' profiles and enrich himself.

In fact, the two visits mean that the President has spent 40 days of his presidency at a golf course, with a total of 54 days at Trump properties.

Mr Trump said it was "very cool" to see all the support for him at the Bedminster course. Mr Trump spent the afternoon watching the tournament on television, chatting with competing golfers and club managers, posing for photos and flashing thumbs-up signs to spectators who gathered to catch a glimpse of their president in the flesh. The loud crowd that gathered to watch him at times distracted the golfers playing nearby, with club staff urging fans trying to win Trump's attention to be quiet during play.

“We love you, Donald!” they shouted, as he made his way into an enclosed viewing area with large windows looking out onto the course.

“It's just a fun experience,” Tom Palmer, 28, of Philadelphia told the Associated Press. “He's enjoying,” he said of the president, “so it's fun to be around.”

Donald Trump's international Presidential trips Show all 22 1 /22 Donald Trump's international Presidential trips Donald Trump's international Presidential trips French President Emmanuel Macron and US President Donald Trump AFP/Getty Images Donald Trump's international Presidential trips French President Emmanuel Macron and US President Donald Trump talk as they leave the Army Museum at Les Invalides in Paris AFP/Getty Images Donald Trump's international Presidential trips German Chancellor Angela Merkel and US President Donald Trump arrive for the group photo at the G7 Taormina summit on the island of Sicily in May 2017 Getty Images Donald Trump's international Presidential trips Mr Trump was pressed on the subject at the G7 summit in Italy Getty Donald Trump's international Presidential trips US President Donald Trump gives a speeech at the Warsaw Uprising Monument on Krasinski Square Getty Donald Trump's international Presidential trips US President Donald Trump and Britain's Prime Minister Theresa May during a ceremony at the NATO headquarters before the start of a summit in Brussels, Belgium Reuters Donald Trump's international Presidential trips Montenegro's Prime Minister Dusko Markovic is seen to the right of Donald Trump at a Nato summit in Brussels REUTERS Donald Trump's international Presidential trips Pope Francis meeting with US President Donald J. Trump EPA Donald Trump's international Presidential trips Pope Francis poses with US President Donald Trump and First Lady Melania Trump AFP/Getty Images Donald Trump's international Presidential trips US President Donald Trump arrives at Palazzo del Quirinale ahead of the meeting with Italian President Sergio Mattarella Ufficio Stampa Presidenza della via Getty Donald Trump's international Presidential trips US President Donald Trump is seen during a joint press conference with the Palestinian leader at the presidential palace in the West Bank city of Bethlehem AFP/Getty Images Donald Trump's international Presidential trips Palestinian president Mahmoud Abbas meets US President Donald Trump PPO via Getty Donald Trump's international Presidential trips Israeli Prime Minister Benjamin Netanyahu speaks with US President Donald Trump prior to the President's departure GPO via Getty Images Donald Trump's international Presidential trips US President Donald Trump and Israel's Prime Minister Benjamin Netanyahu shake hands after delivering a speech at the Israel Museum AFP/Getty Images Donald Trump's international Presidential trips US President Donald Trump and First Lady Melania Trump lay a wreath in the Hall of Remembrance as White House senior advisor Jared Kushner and Ivanka Trump watch on during a visit to the Yad Vashem Holocaust Memorial museum AFP/Getty Images Donald Trump's international Presidential trips US President Donald Trump visit to Yad Vashem Holocaust museum in Jerusalem accompanied by Prime Minister Benjamin Netanyahu GPO via Getty Images Donald Trump's international Presidential trips US President Donald Trump takes his seat before his speech to the Arab Islamic American Summit in Riyadh in Saudi Arabia Reuters Donald Trump's international Presidential trips Saudi Arabia's King Salman bin Abdulaziz al-Saud, US President Donald Trump and US First Lady Melania Trump look at a display of Saudi modern art at the Saudi Royal Court in Riyadh AFP/Getty Images Donald Trump's international Presidential trips US President Donald Trump and Saudi Arabia's King Salman bin Abdulaziz al-Saud take part in a signing ceremony at the Saudi Royal Court in Riyadh AFP/Getty Images Donald Trump's international Presidential trips King Salman presents Donald Trump with The Collar of Abdulaziz al-Saud Medal at the Royal Court Palace on 20 May AP Donald Trump's international Presidential trips US President Donald Trump is welcomed by Saudi King Salman bin Abdulaziz al-Saud upon arrival at King Khalid International Airport in Riyadh AFP/Getty Images Donald Trump's international Presidential trips U.S. President Donald Trump and first lady Melania Trump walk on the South Lawn prior to their first foreign trip Getty Images

Outside the club's gates, dozens of protesters and supporters waved competing flags and banners near where the president has a residence at the club, which sits on more than 600 acres (243 hectares) of rolling hills amid farmland.

“America Lost Putin Won,” read one sign — a nod to the intensifying inquiries into Russia's meddling in the 2016 election and potential collusion between Moscow and Trump campaign aides. The White House has denied such allegations.

The anti-sexism group UltraViolet is planning a rally on Sunday to protest the United States Golf Association's decision to stage the biggest women's tournament of the year at a course owned by Mr Trump because of his past lewd comments about women.