WASHINGTON (AP) A special counsel report released Thursday found evidence that President Joe Biden willfully retained and shared highly classified information when he was a private citizen, including about military and foreign policy in Afghanistan, but concluded that criminal charges were not warranted.

The report from special counsel Robert Hur resolves a criminal investigation that had shadowed Bidens presidency for the last year. But its bitingly critical assessment of his handling of sensitive government records and unflattering characterizations of his memory will spark fresh questions about his competency and age that cut at voters most deep-seated concerns about his candidacy for re-election.

In remarks at the White House Thursday evening, Biden denied that he improperly shared classified information and angrily lashed out at Hur for questioning his mental acuity, particularly his recollection of the timing of his late son Beaus death from cancer.

The searing findings will almost certainly blunt his efforts to draw contrast with Donald Trump , Bidens likely opponent in Novembers presidential election, over a criminal indictment charging the former president with illegally hoarding classified records at his Mar-a-Lago estate in Florida and refusing to return them to the government. Despite abundant differences between the cases, Trump immediately seized on the special counsel report to portray himself as a victim of a two-tiered system of justice.

Yet even as Hur found evidence that Biden willfully held onto and shared with a ghostwriter highly classified information, the special counsel devoted much of his report to explaining why he did not believe the evidence met the standard for criminal charges, including a high probability that the Justice Department would not be able to prove Bidens intent beyond a reasonable doubt, citing among other things an advanced age that they said made him forgetful and the possibility of innocent explanations for the records that they could not refute.

I did not share classified information, Biden insisted. I did not share it with my ghostwriter. He added he wasnt aware how the boxes containing classified documents ended up in his garage.

And in response to Hurs portrayal of him, Biden insisted to reporters that My memory is fine, and said he believes he remains the most qualified person to serve as president.

How in the hell dare he raise that? Biden asked, about Hurs comments regarding his sons death, saying he didnt believe it was any of Hurs business.

When asked about the report earlier Thursday in a private moment with a handful of House Democrats ahead of his speech at their suburban Virginia retreat, Biden responded angrily, according to two people familiar with his comments, saying, You think I would f forget the day my son died? The people did not want to address the matter publicly and spoke of condition of anonymity.