WATCH: O’Toole says Trudeau would ‘eat Peter MacKay alive’ in new video

Touching on the themes of electability, O'Toole bought up MacKay's interview with CBC where he asked the host whether he looked like he had lost his mind, and another interview where he walked out after being asked a question about a controversial tweet.

"He just can't handle the pressure," said the video's narrator. "He couldn't answer simple questions without completely losing his composure."

"If MacKay can't handle the pressure of a leadership campaign, how is he going to handle Justin Trudeau and the Liberals."

This video comes a few days after another attack ad which also focused on the theme of Mackay being to weak to handle the Liberal war room and the media.

In a memo obtained by The Post Millennial, O'Toole's campaign manager Fred DeLorey said that MacKay is "weak" and "unable to withstand Liberal and media pressure."

"Just in the past few weeks he and his campaign have had to back down a number of times in the face of media criticism. During the debate over delaying the CPC leadership race, he couldn't handle even mildly critical media questions without losing his composure," added DeLorey.

Going further still, the memo raised a 2011 report that showed "MacKay outranking almost every cabinet minister in travel spending. In 2014, he ignited a firestorm over sexist emails. In 2011 created more headaches for the government by the revelation that he ordered a search and rescue helicopter to pick him up from a fishing vacation."

The O'Toole campaign is seeking to remind Conservative members of MacKay's track record through these videos.