On Monday the Conservatives released another round of online attack ads questioning Justin Trudeau’s credibility, juxtaposing comments he made on the economy and the Boston marathon bombing with a familiar striptease the Liberal leader did for charity.

While there have been reports that both ads made it onto some Canadians’ TV screens as early as March, they were only uploaded to the party’s YouTube account on Monday.

One begins with “Boston Marathon April 15, 2013” imposed on a black screen against the sounds of explosions and police sirens.

It quickly moves to an interview Trudeau gave on CBC in the hours following the terrorist attack.

“There is no question that this happened because there is someone that feels excluded,” he says as the ad fades into his striptease.

“How can someone who makes excuses for terrorists keep Canadians safe?” the ad then asks before repeating the Conservatives’ line that the Liberal leader is in over his head.

The other ad starts off with the sound of cash register and moves straight to questioning whether Trudeau can run Canada’s economy.

It takes a snippet from an interview Trudeau gave on CPAC in February in which he says the budget will balance itself, then answers its own question with another: “How can someone who thinks budgets balance themselves be trusted with jobs and the economy?”

It also features the famous Trudeau striptease.

For some, the latter line of attack is a bit peculiar.

In a piece he wrote in Canadian Business in March, University of Western Ontario economics professor Mike Moffatt noted that the late finance minister Jim Flaherty and president Ronald Reagan both argued economic growth was necessary to balance the budget.

Shortly after the CBC interview in which Trudeau made those Boston bombing comments last year, Harper pounced on the suggestion that we should look to the “root causes” of terrorism.

Beyond clarifying what he meant by “root causes” of terrorism, Trudeau’s retort at the time was to accuse Harper of politicizing the attack.

“I really hope Mr. Harper rethinks the extents and the lengths he is willing to go to personally attack people and to politicize tragedies like that,” Trudeau said.

Trudeau can keep hoping, it seems.

As for the public, a recent Forum Research poll showed that of those who’d seen the ads, about half (47 per cent) said the ads were more likely to make them vote Liberal. Only 20 per cent or fewer of respondents said the ads would make them vote for any other party — 20 per cent said Conservative and 17 per cent said NDP.