House Speaker Nancy Pelosi is getting a nudge to move more quickly toward impeachment of Donald Trump.

But, this time, it’s not a noisy member of the Democrats’ left flank. Or even one of the usual progressive advocacy groups.

No, it is a former deputy director of the FBI.

“Let’s talk about Congress. Under these circumstances, knowing what they know confronting the sort of resistance that they are getting from the administration, if they don’t act now, when would they ever? That’s the question,” said McCabe, referring to the growing number of instances in which current or former Trump administration officials are refusing to comply with lawful congressional subpoenas to either testify personally under oath, or turn over requested documents.

In an on-air CNN interview, McCabe was asked directly, “Simply yes or no, do you think they’re acting too slowly?”

McCabe replied, “I think that they should be moving forward. I think they should be moving forward in a deliberate and careful fashion. They claim to be doing that. But I think it would be good for them to make a little more progress.”

That includes such high-level officials as Attorney General William “Bill” Barr and former White House counsel Don McGahn.

McCabe served as deputy director of the FBI for nearly two years, including a stint of a few months as acting director in 2017, after Trump fired Director James Comey.

McCabe, who worked his way up the FBI ranks over about 20 years, was a frequent target of Trump’s Twitter ire and ultimately was fired. McCabe has denied any wrongdoing and said his dismissal was politically motivated.