Tiffany Trump's approach to her father's presidency is wholly different to that taken by her siblings. While Ms Trump’s older brother remains bitterly ensnared in the Russia scandal and her sister serves as an unpaid White House advisor, she has managed to keep her father’s politics at arms-length.

Apart from a handful of occasions where she joined the family during Mr Trump’s presidential campaign, President Donald Trump’s youngest daughter, who is his only daughter from his second marriage to Marla Maples, has kept a relatively low profile.

But this does not mean the 23-year-old, who was raised separately from her siblings and has been dubbed the “forgotten” Trump, is not subject to stringent and exorbitant security measures.

Ms Trump’s recent holiday to Berlin in Germany is said to have cost the US taxpayer $22,440. Federal purchase orders viewed by CBS News showed this sum covered hotel costs for the team of US Secret Service agents which accompanied her on a trip to the German capital with her boyfriend last month.

Nevertheless, this figure did not include the amount spent on paying the agents for their time or flights.

One purchase order for the agent's hotel includes this line "URGENT! Rooms Regent USSS (Tiffany Trump visit) June 14-24" suggesting there might have been little notice the holiday was taking place. According to the United States Secret Service, the general practice is for agents to vet a site ahead of arriving.

Ms Trump, who is due to attend Georgetown Law School in autumn, shared photos of herself and her boyfriend in Hungary but no details of the hotel bills in Hungary have yet to be released.

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

The Trump family are avid travellers and have come under fierce criticism for their jet-setting since the billionaire property developer's arrival in the Oval Office. In January, Ms Trump's half-brother Eric was reported to have cost the US taxpayer almost $100,000 to cover his security costs. According to local press, he visited the Trump Tower in Punta del Este for as little as two nights.

In March, Ivanka, her husband Jared Kushner, their children and Eric sparked outrage for the cost of the family’s spring break ski holiday in Colorado. They reportedly required 100 Secret Service agents to travel with the group for the trip – who were said to have spent $12,208 on rental ski equipment and clothing. In May, another skiing holiday enjoyed by Ivanka and Mr Kushner was reported to have cost taxpayers at least $65,000 in Secret Service protection.

The President's immediate family members are assured state-funded security details - particularly on trips abroad.

Nevertheless, in the past Mr Trump has questioned whether the US taxpayer should be footing the bill for extensive security on visits for non-official purposes. While Barack Obama was President, he vented his frustrations about “taxpayer funded vacations” which cost the American people “millions of dollars” on Twitter.