Trump walks to the Oval Office on Sept. 20. Photo: Saul Loeb/AFP/Getty Images

Trump’s reported request for Ukraine to investigate former Vice President Joe Biden is part of a secret whistleblower complaint over an alleged "promise" made between the president and an unnamed foreign leader, the New York Times reports.

The big picture: Many details about the whistleblower report, "submitted by a member of the intelligence community," per the Times, are still unknown. The Trump administration "has not shared the complaint with Congress, as is generally required by law," the Times reports.

Background: Biden called for Trump to release a transcript of his July phone call with Ukrainian President Volodymyr Zelensky on Friday, amid reports that Ukraine is at the center of a whistleblower's complaint over Trump's contacts with a foreign leader.

  • Last month, Trump's personal lawyer Rudy Giuliani held an in-person meeting in Madrid with one of Zelensky's top representatives to encourage Ukraine to investigate potential conflicts of interest involving the Biden family, the NYT reports.

Go deeper: Trump's defiance on Ukraine

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Updated 48 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

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FBI: Russian hacking group stole data after targeting local governments

FBI Headquarters. Photo: Mark Wilson/Getty Images

Energetic Bear, a Russian state-sponsored hacking group, has stolen data from two servers after targeting state and federal government networks in the U.S. since at least September, the FBI and Cybersecurity and Infrastructure Security Agency said on Thursday.

Driving the news: Director of National Intelligence John Ratcliffe announced Wednesday that Iran and Russia had obtained voter registration information that could be used to undermine confidence in the U.S. election system.

FDA approves Gilead's remdesivir as a coronavirus treatment

A production line of Remdesivir. Photo: Fadel Dawood/picture alliance via Getty Images

Gilead Sciences on Thursday received approval from the Food and Drug Administration for remdesivir, an antiviral treatment that has shown modest results against treating COVID-19.

Why it matters: It's the first and only fully FDA-approved drug in the U.S. for treating the coronavirus.