CAPTION:Prime Minister Justin Trudeau’s speech to the Federation of Canadian Municipalities was momentarily disrupted when a protester in the crowd started blowing a whistle.

The protester was quickly escorted away. (June 1) SOUNDBITE: Justin Trudeau, prime minister PLACELINE: Halifax CREDIT: The Canadian Press STORYLINE: The country's big city mayors have made a wish list that includes funding for affordable housing, climate change and new revenue tools.

Trudeau told the Federation of Canadian Municipalities that its members as "essential partners" in shaping Canada.

He says his government isn't one that believes in an "Ottawa knows best approach." The prime minister was briefly interrupted at the outset of his speech by a woman who was blowing a whistle.

She was quickly and quietly escorted away, and Trudeau remarked to delegates that it's the people of Canada that politicians work for, adding that "whether we agree or not we are going to keep talking and listening."