Politics Briefing: Trudeau dismisses talk of stepping down, says he's focused on tackling Canada's challenges

Hello, Prime Minister Justin Trudeau, asked about stepping down in light of polls that suggest the Conservatives are ahead of his Liberals, says he's focused on grappling with the challenges facing Canada. "We're two years away from the next election. I continue to do my job, and there's a lot of important work to be done, and to deliver for Canadians in these tough times," Mr. Trudeau told a news conference Wednesday in London, Ont. "I remain enthusiastic, but determined to do that work." Members of the federal Liberal caucus of 158 MPs have gathered in the Southwestern Ontario city…