Prime Minister Stephen Harper will be a no-show at the first question period of the new session of Parliament.
It was announced shortly after Wednesday's throne speech that Harper is off to Brussels on Thursday to wrap up a long-promised free-trade deal with the European Union.
But some may say the timing is convenient, as Harper faced a number of tough questions regarding the Senate expense scandal and the recent Elections Canada charges laid against his former parliamentary secretary, Dean Del Mastro.
And that has his main rivals accusing the prime minister of running scared.
Mulcair told CBC's Evan Solomon that Harper's absence in the House of Commons will be both "undignified and unprecedented."
The NDP leader was also highly critical of Harper's decision to prorogue Parliament by one month this summer. NDP MPs instituted "virtual question periods" on Twitter, where they lobbed questions at Harper and his key ministers online, but were mostly met with radio silence.
"He can run, even to Brussels, but he can't hide," Mulcair said.
Liberal Leader Justin Trudeau also told Solomon he was disappointed, but vowed Liberals will hold Harper's feet to the fire this fall.
"I think we've gotten used to a prime minister that prefers not to be held accountable," Trudeau said.
This is not the first time Harper has hit the road in advance of a difficult question period.
A "very upset" Harper addressed his caucus the morning before departing, but did not respond to questions yelled from reporters.
That left Foreign Affairs Minister John Baird to field the brunt of questions from rivals later that afternoon in the House.
"Mr. Speaker, when the going gets tough, the tough get going … to Peru, apparently," Mulcair said.
The EU deal could be a major feather in Harper's cap. One agriculture expert has said it could mean up to $1.3 billion in new exports from Canada, mostly beef.
And perhaps most importantly for Tories, it may give Harper another chance to change the channel.
NDP House Leader Nathan Cullen told HuffPost on Sunday that Harper is facing a grilling this fall over the various controversies that have plagued Tories all summer.
"Boy, oh boy, he's going to have trouble with question period," Cullen said. "If the prime minister didn't outright lie, then he lied by hiding the truth that he knew, and he needs to account for that."
With files From The Canadian Press
Also on HuffPost