Trump backer Timothy Mellon identified as donor of $130m for US troop pay during government shutdown

A reclusive billionaire, anti-tax crusader and major financial backer of Donald Trump has been named as the anonymous private donor who gave $130m to the government to help pay US troops during the federal shutdown that is now in its fourth week, according to the New York Times.

Timothy Mellon, heir to the gilded age industrialist and former treasury secretary Andrew Mellon, is the secret donor whom Trump has described as a “friend”, “great American” and “patriot”, but has refused to name, the Times reported on Saturday, citing two anonymous sources familiar with the arrangement.

Trump first announced the secret, legally controversial donation on Thursday amid growing clamor about the potential financial hardship being caused by the ongoing federal shutdown on the 1.3 million active duty military troops.

​​“He doesn’t want publicity,” Trump said on Friday as he headed to Malaysia. “He prefers that his name not be mentioned, which is pretty unusual in the world I come from, and in the world of politics, you want your name mentioned.”

​​The Pentagon told the Times that the donation was accepted under the “general gift acceptance authority”.

“The donation was made on the condition that it be used to offset the cost of service members’ salaries and benefits,” said Sean Parnell, the Pentagon’s chief spokesperson, in a statement.

Still, the donation, which equates to about $100 per service member, appears to be a potential violation of the Antideficiency Act, which prohibits federal agencies from spending funds in advance or in excess of congressional appropriations – and from accepting voluntary services “except in the case of emergency involving the safety of human life or the protection of property”.

Potential penalties for violations include both administrative and criminal sanctions such as suspension or removal from duty, fines and imprisonment.

A White House spokesperson referred the Guardian to the treasury department, which has been contacted for comment.

Mellon, 80, pumped over $165m to back Trump, Robert F Kennedy and other Republican candidates during the 2024 election cycle, making him the top donor fueling outside spending groups last year, according to the campaign finance watchdog OpenSecrets. This included $125m to the Super PAC Make America Great Again Inc, which supported Trump, according to Federal Election Commission documents. Mellon has also given money to Kennedy’s anti-vaccine group, Children’s Health Defense.

Mellon, a retired railroad magnet who lives mostly in Wyoming, is a relatively new player in campaign financing, donating just $32,000 in the 2016 election cycle when Trump first ran for office. This jumped to $10m in 2016 and $60m in 2020, when in a rare interview with Bloomberg the recluse said he believed Trump had delivered on what he’d said on the stump.

In 2021, the Texas Tribune reported that Mellon had donated $53m to Texas governor Greg Abbott’s fund to build a wall on the state’s border with Mexico.

Mellon’s wealth and anti-tax leanings can be traced back to his industrialist grandfather, who made his money in banking and investments in startups before serving as treasury secretary from 1921 to 1932.

The Mellon family remains one of the country’s richest with a combined net worth of $14bn in 2024, according to Forbes. Timothy Mellon’s individual wealth is unclear, with reported estimates ranging from $700m to $4bn.