Looks like an old playbook. From 2019 in the DoS FOIA reading room (Schiff in play):
On that call, Trump allegedly asked Volodymyr Zelensky to investigate Hunter Biden, the son of former vice president and possible 2020 opponent Joe Biden, according to an intelligence official turned whistleblower who reported the call to the intelligence community inspector general.
The Trump administration has blocked Congress from seeing the complaint. The acting director of national intelligence, Joseph Maguire, who held back the whistleblower's complaint from Congress, is testifying before the House Intelligence Committee on Thursday.
That panel's chairman, Adam B. Schiff (D-Calif.), said the whistleblower wants to speak to the committee and is seeking guidance from Maguire about how he could do so.
"We're in touch with counsel and look forward to the whistleblower's testimony as soon as this week," Schiff tweeted. The whistleblower's lawyer notified Maguire in writing Thursday of his client's "intent to
contact the congressional committees directly."
"Accordingly, I request direction on doing so in accordance with appropriate security practices," according to the letter, which was reviewed by The Washington Post. The lawyer, Andrew Bakaj, wrote that his client had reported an "urgent concern" to the intelligence community inspector general on Aug. 12, "through the established procedures promulgated by law."
https://foia.state.gov/FOIALIBRARY/SearchResults.aspx?searchText=bakaj