Jesse Watters blasted a CNN host who called President Trump a "piece of [expletive]" in the aftermath of the London Bridge attacks.

Reza Aslan, a sociologist who hosts a Sunday program about religion, objected to Trump calling for vigilance and a "travel ban" in the wake of the attacks.

Aslan later apologized, and said it was not like him to use salty language.

Watters said Aslan previously said filmmaker Dinesh D'Souza should "go [expletive] himself," and publicly wished that former Rep. Todd Akin (R-Mo.) would be raped.

Aslan was also criticized for his CNN program's visit to a shunned Hindu sect that practices cannibalism, where he smeared his face with crematory ash and ingested a piece of brain.

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"The crazier the left has become, it shows how effective President Trump is being," Watters said.

Watters said Trump is "driving a stake between the heart of the left," and has isolated the "fringe."

Watch the clip above.

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