Newly declassified documents from the government’s “Crossfire Hurricane” investigation have revealed that top Obama-era intelligence officials concluded Russia did not significantly influence the 2016 election outcome. A memo, released by Director of Intelligence Tulsi Gabbard, shows that U.S. intelligence determined “Russian and criminal actors did not impact recent US election results by conducting malicious cyber activities against election infrastructure.”

The memo, dated 2016 and shared with then-President Obama, acknowledged attempted cyber intrusions by Russian actors, such as a breach of Illinois’ voter registration database and unsuccessful attempts in other states. However, it concluded that the attacks did not reach the scale or sophistication necessary to alter vote totals or outcomes.

Despite this assessment, the investigation into alleged Trump-Russia collusion moved forward, raising concerns about political motivations. The memo bolsters claims by Donald Trump that the “Russiagate” narrative was a smear campaign orchestrated by Clinton allies and perpetuated by intelligence officials. Critics argue the continuation of the probe, despite internal doubts, casts a shadow over the legitimacy of the investigation.

The release also comes amid reports that the FBI is preparing to investigate former intelligence leaders including John Brennan and James Comey. Brennan has been accused of shielding elements of the probe and relying on the now-discredited Steele dossier.

The memo’s findings suggest that Obama was briefed on the limited impact of Russian interference, raising further questions about why the investigation into the Trump campaign proceeded.