The Justice Department’s widening South Florida-based investigation into an alleged high-level conspiracy to target President Donald Trump is putting renewed pressure on a pair of Trump’s adversaries, with classified transcripts of a congressional interview of former CIA Director John Brennan headed to prosecutors and former FBI Director James Comey under subpoena.

The developments come as federal prosecutors pursue a theory that, starting during the Obama administration, top officials coordinated actions against Trump and his allies, stretching from the 2016 Russia investigation through criminal cases brought during the Biden administration. The investigation, centered in a Fort Pierce grand jury, is emerging as the administration’s clearest path to test that grand conspiracy case in court.