Congressman Jim Jordan is under fire from an unlikely source.

The Republican congressman has been labeled by some political analysts as an attack dog for Donald Trump, but he doesn't live up to his MAGA talk, according to fellow Trump ally and top Trump trade adviser Peter Navarro.

Navarro said he saw Jordan on the Fox News' The Big Weekend Show, and was "very disappointed."

"Brother [Jordan]. Watched [The Big Weekend Show] & very disappointed you failed to mention role of FBI thug Walter Giardina in Get Trump conspiracy -- and putting me in prison," Navarro wrote. He added, "Read THIS now for the whole story," and linked to a Breitbart article on the subject.

On Sunday, Navarro additionally attacked James Comer.

"BTW [Jordan, Comer and the Judiciary GOP], never did squat to stop me or Steve Bannon from going to prison."

"All talk, no walk on weaponized justice front," the Trump trade adviser added.