The Sen. Mike Duffy trial grabbed headlines throughout the third week of the campaign, but plenty of other interesting things happened too. Here’s a look back at the highlights.

MONDAY

At a campaign stop in suburban Toronto, Liberal Leader Justin Trudeau promoted his plan to raise taxes on the rich while cutting taxes for the middle class.

Trudeau also answered questions, most notably on how he doesn’t believe in “formal coalitions” but is “open to working with other parties” to pass legislation.

The Rhinoceros Party also made a few platform promises, including vowing to move the capital to Kapuskasing, Ont., and nationalizing Tim Hortons.

TUESDAY

Conservative Leader Stephen Harper was in suburban Toronto too, where he vowed to resurrect a “Life Means Life” bill that would ban parole for some types of first-degree murders.

The newest Nanos Research polling showed it’s still a three-way race, but an uptick in support for the Conservatives in Ontario had pushed that party into a slight lead.

Green Leader Elizabeth May, whose party is polling at around five per cent, told a crowd in Victoria, B.C., she would ban supertankers loaded with bitumen from the waters of B.C.

And it was a big day at the Duffy trial. The prime minister’s former chief of staff Nigel Wright, who wrote a personal $90,000 cheque to cover Duffy’s questionable expenses, testified he had “no concept of the connotations of writing the cheque” and admitted that he “got that one wrong.”

Trudeau ended his day by accepting the resignation of Calgary candidate Ala Buzreba, after controversial comments she made on Twitter when she was a teenager re-emerged.

WEDNESDAY

NDP Leader Tom Mulcair, meanwhile, faced questions about what he said back in 2001, when he was a Liberal member of the Quebec National Assembly. He had commended former U.K. Prime Minister Margaret Thatcher’s anti-union government for bringing a “wind of freedom and liberalism” – a position seemingly at odds with the union-backed NDP.

Mulcair also dodged questions in Surrey, B.C., about how he planned to pay for his pledge to recruit 2,500 more police officers.

THURSDAY

More online comments bubbled up online, this time from Conservative Gilles Guibord, who spoke of “man’s authority over women.” He is no longer a candidate in Montreal.

It was another big day at the Duffy trial, with former PMO lawyer Ben Perrin describing in detail how Stephen Harper’s Chief of Staff Ray Novak was “present throughout” a March 2013 conference call when the plan for Wright to repay Duffy’s expenses was discussed. That contradicted what Wright said.

Harper weighed in too:

FRIDAY

After a shouting match at a Conservative campaign rally went viral earlier this week, Carleton University journalism professor Christopher Waddell told Canada AM that the public is no longer used to seeing hecklers at campaign stops, because the leaders so rarely speak to audiences that filled with partisans.

Scouts Canada, meanwhile, reminded members it’s against policy to wear uniforms to partisan political events, after a few youngsters stood behind Harper while he spoke about his commitment to spend $15 million to protect salmon habitats.

And while Nanos’ polling may have shown a Conservative lead in Ontario, the NDP appears ahead in vote-rich Quebec.

CTV National correspondent Genevieve Beauchemin looked at what's behind the numbers in that province: