The father of a US soldier killed in Iraq has said he wants to learn how to use Twitter so he can call Donald Trump a “damn liar”.

Euvince Brooks said he had not heard from the President since his 30-year-old son, Sergeant Roshain E Brooks, was killed on 13 August.

Mr Brooks told The Washington Post he became angry after Mr Trump’s claim that he contacts families that have lost a son or daughter in action.

“I said to my daughter, ‘Can you teach me to tweet, so I can tweet at the president and tell him he’s a liar?’” Mr Brooks told the newspaper.

“You know when you hear people lying, and you want to fight? That’s the way I feel last night. He’s a damn liar.”

Sergeant Brooks was killed during what was branded a “mishap” by the Army during a mortar fight against Isis. He was posthumously awarded the Bronze Star, Purple Heart, Meritorious Service Medal and Combat Action Badge.

Rep. Frederica Wilson: Trump didn't know the name of the fallen serviceman Sgt. David Johnson

Mr Brooks, from Brooklyn, New York City, called the President a “damn disgrace to the White House”.

“I’ve been here for 17 years. Presidents George Bush and Obama, none of them behaved like this guy. This guy is a damn lunatic,” he told New York Daily News.

Mr Brooks’ comments come after allegations the President told the widow of another fallen serviceman “he knew what he signed up for”.

He also tried to defend his record on contacting the families of dead soldiers by falsely accusing President Obama of failing to make phone calls to parents.

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

Other grieving families have, however, weighed in to praise the 71-year-old for his response to US military deaths.

The father of Sergeant Cameron H Thomas, a US Army Ranger killed in April during a raid in Afghanistan, told The Washington Post: “He gave his condolences and made some comments how different his paperwork was when it went across his desk.”

“He said most of the paperwork he sees in these types of death says, ‘He’s respected by his peers.’ He said Cameron’s stuck out because it said he was respected and loved by his peers.”