For weeks, Conservative Leader Pierre Poilievre has been accusing NDP Leader Jagmeet Singh of supporting the government until February so he can become eligible for his MP pension. But experts estimate the size of Poilievre's own pension at more than three times that of Singh's pension.

A calculation of Poilievre's House of Commons pension indicates that he could draw more than $230,000 annually once he turns 65. That figure could grow considerably if Poilievre becomes prime minister following the next federal election.

If Singh qualifies for his pension, he could draw more than $66,000 annually starting at age 65, the same estimates suggest.

"Mr. Singh isn't the one who should be getting attacked over his pension," said Green Party Leader Elizabeth May. "I think it's a slippery slope and one [Poilievre] will regret."