02/08/2016 8:01 AM AEST | Updated 02/08/2016 8:04 AM AEST

John Oliver Takes Apart 'Self-Serving Half-Man' Donald Trump

John Oliver is steamed.

Republican presidential candidate Donald Trump recently reached a new low when he attacked Gold Star parents Khizr and Ghazala Khan, the host of HBO's "Last Week Tonight" said on Sunday.

(Note: strong language below and in the clip above.)

The couple lost a son in Iraq and spoke out against Trump during the Democratic National Convention last week. In response, Trump insulted the family and implied that Ghazala Khan wasn't even allowed to speak.

"She chose not to speak because she gets too upset when she sees images of her dead son's face, you fucking asshole," Oliver said.

During an ABC News interview, Trump was asked to name some of the sacrifices he has made. He ticked off a list of his own accomplishments. That left Oliver, the husband of an Iraq War veteran, fuming.

"They are half-truths from a self-serving half-man who has somehow convinced half the country that sacrifice is the same thing as success," Oliver said, adding:

"Honestly, the main takeaway from these two weeks is that, incredibly, we may be on the brink of electing such a damaged, sociopathic narcissist, that the simple presidential duty of comforting the families of fallen soldiers may actually be beyond his capabilities ― and I genuinely did not think that was a part of the job that someone could be bad at."

See Oliver's recap of the Democratic National Convention and his full takedown of Trump in the clip above.

Editor's note: Donald Trump regularly incites political violence and is a serial liar, rampant xenophobe, racist, misogynist and birther who has repeatedly pledged to ban all Muslims — 1.6 billion members of an entire religion — from entering the U.S.