House Intelligence Committee Chairman Adam Schiff revealed that his committee may not call on the whistleblower to testify.

The whistleblower, who has been identified as a CIA official with ties to former Vice President Joe Biden, filed a complaint within the intelligence community over a July 25 phone call between President Trump and Ukrainian President Volodymyr Zelensky. During the call, Trump requested that the foreign leader investigate Biden and his son Hunter, who worked in the country.