The US intelligence community is still working to understand the relationship between a Chinese businesswoman who had an affair with Nvidia CEO Jensen Huang and the Chinese government, with multiple sources telling CNN that the intelligence collected on her to date does not prove that she was acting as a spy for Beijing.

There is disagreement among US officials about the strength of the evidence that Alice Huang was recruited by the Chinese Ministry of State Security (MSS), the Chinese equivalent of the CIA, to spy on Jensen Huang — and, by extension, on US policymakers.

The FBI has been investigating Huang’s affair for at least a year. But Attorney General Todd Blanche said on Thursday that there are still “no conclusions reached by the Department of Justice, or by me, or by [FBI] Director Patel around who she is or is not.” President Donald Trump also hedged Thursday on whether the US had determined she was a spy, when commentator Stephen A. Smith asked whether Huang was right to have stepped down as CEO.