The intelligence community inspector general last week suggested that the controversial whistleblower complaint that triggered the Ukraine-Trump drama, raised concerns about multiple actions, sources told CNN.

However, the inspector general — who spoke at a closed-door briefing last week — would not say if those instances involved President Trump, the sources said.

One source said that Inspector General Michael Atkinson referenced "a sequence of events" and "alleged actions" that took place. However, another source disputed that the IG provided substantive details regarding the whistleblower claim.

Remember: We still haven't seen the whistleblower's complaint. Yesterday, the Senate unanimously approved a resolution urging the Trump administration to provide the full whistleblower compliant to Congress.

What we do know about the complaint: The Trump-Ukraine drama was first triggered by a whistleblower, who filed a complaint about Trump's contact with a foreign leader. After that, allegations surfaced that Trump threatened to withhold $400 million in military and security aid from Ukraine to force Kiev to open an investigation into his potential 2020 rival Joe Biden and his son, Hunter.

There is no evidence of wrongdoing by Biden or his son.