Former CIA chief John Brennan, ex-FBI agent Peter Strzok, and former FBI attorney Lisa Page have been subpoenaed as part of a federal grand jury’s probe into the beginnings of the 2016 Russia investigation. This development was confirmed by a source acquainted with the inquiry on Friday.

The grand jury is set to issue over 30 subpoenas in total, linked to former President Donald Trump’s assertions that his political adversaries fabricated collusion claims between him and Russia during the 2016 campaign. Insiders from both the Department of Justice and the FBI have verified these details.

The investigation scrutinizes Brennan’s management of the now-debunked “Steele dossier” and his involvement in the alleged misuse of intelligence in the 2016 election evaluation, according to the source.

Subpoenas began being dispatched on Thursday, with more anticipated on Friday. However, it remains uncertain who else might be targeted, as confirmed by a source.