Hunter Biden’s lawyers sent letters Wednesday requesting investigations into former President Donald Trump’s allies who they say trafficked in information stolen from his laptop, a dramatic shift in the president’s son’s strategy after years of Republican attacks.

Among the letters, obtained by NBC News, was one sent Wednesday to the Justice Department’s Homeland Security Division requesting an investigation into «individuals whom there is substantial reason to believe have violated various federal laws by accessing, copying, manipulating and/or spread the data from Mr. Biden’s personal computer,” including Rudy Giuliani, who was Trump’s attorney at the time.

Hunter Biden’s lawyers wrote a similar letter to the Delaware attorney general’s office, requesting an investigation into the same individuals for allegedly violating «various Delaware laws» by accessing Biden’s information from what Trump has called «the computer laptop from hell.»

The Justice Department declined to comment. A spokesman for the Delaware attorney general did not immediately respond to a request for comment.

The information from the laptop has raised questions about Biden’s finances, which have been under investigation by federal prosecutors in Delaware since 2018. They have also been the source of several salacious stories in the conservative media, many centering on his consumption of drugs.

Biden has largely kept a low profile during the story years: Trump would ask «Where’s Hunter?» during campaign rallies in the 2020 election, but a person familiar with the first-born strategy told NBC he had had enough.

“This marks a new approach by Hunter Biden and his team. He will not stand by while questionable characters continue to violate his rights and media organizations that sell lies try to smear him,” the person said.

Giuliani acknowledged passing a copy of the computer’s hard drive to the New York Post shortly before the 2020 presidential election. The letters to investigators also recommend an investigation into John Paul Mac Isaac, who said Biden abandoned the damaged laptop by water at his Wilmington, Delaware computer repair store.

Former New York City Mayor Rudy Giuliani speaks during a news conference in New York.
Former Mayor Rudy Giuliani speaks during a press conference in New York in 2022.Maria Altaffer / AP file

«Mr. Mac Isaac chose to work with President Donald Trump’s personal attorney to weaponize Mr. Biden’s personal computer data against his father, Joseph R. Biden, by illegally causing the supply of Mr. Biden to the New York Post,” the letter reads.

He charged Mac Isaac and others with «theft of computer services» and Giuliani and others with «possession of stolen property.»

While Biden has deflected previous comments about whether the various emails and images were legitimate, the letters seem to acknowledge that at least some are, but he said Biden isn’t sure how much.

The letters say evaluating the data has been «extremely difficult because, for months, neither the New York Post nor its source for the material, President Donald Trump’s lawyer Rudy Giuliani, were willing to share» that data with the public. More recently, subsequent recipients of what is assumed to be Mr. Biden’s hard drive have reported anomalies in the data, suggesting data manipulation.»

In another letter sent Wednesday, Biden’s attorney, Abbe Lowell, asked the Internal Revenue Service to review the tax-exempt status of a charity run by Garrett Ziegler, who Biden says uploaded data he obtained from Giuliani to the site website of the charity.

The letter said the organization has «operated as little more than a thinly disguised political operation to attack the Biden administration and the Biden family,» contrary to regulations that say such groups «cannot engage in any campaign activity outside for or against political candidates.

The IRS did not immediately respond to a request for comment.

Biden’s lawyers also sent a letter to Fox News and host Tucker Carlson demanding the retraction of the «false and defamatory statements made by Mr. Carlson on his show» about Hunter Biden.

The story falsely implied that Hunter Biden was involved in a «money laundering scheme to finance President Biden’s lifestyle» by paying him $50,000 a month in rent. The story was quickly debunked, but Carlson never backed down, the letter says.

The letter also puts Carlson and the network «on notice of potential litigation» and requires that they retain all documents related to the story.

Fox News did not immediately respond to a request for comment.

michael kosnar Y kit ramgopal contributed.