House Intelligence Committee Chairman Adam Schiff said Sunday that an agreement has been reached for the whistleblower at the center of the impeachment inquiry into President Donald Trump to testify before Congress.



In an interview on the ABC program "This Week," Schiff, D-Calif., said he expects the whistleblower to testify "very soon," but timing depends on when the director of national intelligence completes the security clearance process for the individual's lawyers.



"We'll get the unfiltered testimony of that whistleblower," Schiff said.



The whistleblower's lawyer, Mark Zaid, said Sunday that they are working with both parties in the House and the Senate, but no date or time has been set yet for testimony. Protecting the whistleblower's identity is paramount, Zaid said.

The whistleblower filed a complaint expressing concern that Trump was "using the power of his office to solicit interference from a foreign country in the 2020 U.S. election."

The redacted complaint, released by the House Intelligence Committee on Thursday, details a July 25 call in which Trump asked Ukraine's president to "do us a favor" and investigate Democratic presidential candidate Joe Biden and his son Hunter for corruption.

It's illegal under campaign finance law to solicit help from foreign nationals, foreign governments, foreign businesses or foreign political parties.

Trump froze nearly $400 million in military aid to Ukraine before the July 25 call, raising concerns that he was seeking a quid pro quo with Kyiv, an allegation that the president and his supporters deny.



Trump said he halted the aid, which was later released, because European nations were not contributing enough to Ukraine, which is fighting a war with Russian-backed separatists in its eastern region. The European Union and European financial institutions have contributed more than $16 billion in assistance to Ukraine since 2014, according to The Associated Press.