Shortly after news emerged today that Prime Minister Justin Trudeau would not be attending Fidel Castro’s funeral, Conservative MPs piled on the PM over comments he made on the Cuban leader’s death.

Conservative MP Denis Lebel said Trudeau “showed a lack of judgement,” and that his statement on the late Cuban president’s passing “shocked many Canadians.”

“Now that the prime minister has acknowledged that Fidel Castro was a dictator, can he acknowledge that he lacked judgement in making those remarks?” said Lebel in question period Monday.

Foreign Affairs Minister Stephane Dion, fielding questions for an absent Trudeau, said “the vast majority of leaders did not take time to state that Fidel Castro was a dictator. They said that he had passed, they tried to say something positive about him, that is what the Canadian prime minister did and that is what others have done because the objective is to not worsen past issues surrounding antagonism but to focus on positive aspects.”

Trudeau faced a global barrage of criticism over the statement he released hours after news broke that Castro had passed away.

In the statement, Trudeau called Castro a “remarkable leader” and pointed to Castro’s friendship with Trudeau’s late father, Pierre Trudeau. Castro attended Trudeau’s Montreal funeral in 2000.

FORTUNE Magazine wrote that Trudeau’s brand was sinking over his Castro comments.

While Trudeau drew criticism from Canadian Conservative politicians, his comments also irked U.S. politicians and foreign journalists. U.S. Senators Ted Cruz and Marco Rubio took to Twitter to attack Trudeau. Rubio, the son of Cuban immigrants, called the statement “shameful.”

Lebel, raising Rubio’s comment, said that “when an American senator said (Trudeau’s comments) were embarrassing and shameful, well we have to take that into account.”

Lebel asked that Trudeau change the statement on his website to acknowledge that Castro is a dictator.

Days after being hit with domestic and global political backlash over his statement, Trudeau decided he will not attend Castro’s funeral.

Governor General David Johnston will represent Canada and travel to Cuba tomorrow to attend a commemorative ceremony for Castro. The PMO said Monday afternoon that Trudeau will not attend the funeral because “his schedule doesn’t permit it.”

Tory MP Michelle Rempel called Trudeau’s decision not to attend Castro’s funeral “cowardly” on Twitter.

“If @ JustinTrudeau feels that it’s so important to have a rep there, why doesn’t he go himself? Seems a bit cowardly,” she tweeted. “Honestly, can someone please explain the upside of Canada having a state presence at Castro’s funeral?”

Conservative Senator Linda Frum tweeted: “GG should send a letter and nothing more. @ JustinTrudeau and @ gmbutts still don’t get it.”

Conservative leadership candidate Andrew Scheer tweeted, “Should Canada boycott Castro’s funeral? If you agree we must not glorify his brutal legacy, sign my petition here,” and directed followers to his website.

On the other hand, Conservative leadership candidate Maxime Bernier tweeted that he’s “relieved” Trudeau is not attending Castro’s funeral.

On Monday morning, Johnston’s press office released a statement that said, “At the request of the Right Honourable Justin Trudeau, Prime Minister of Canada, His Excellency the Right Honourable David Johnston, Governor General of Canada, will travel to Havana, Cuba, to attend a commemoration in honour of former President Fidel Castro, at the Plaza de la Revolución.”