Liberal Leader Justin Trudeau and Conservative Leader Erin O'Toole made direct strategic voting appeals Friday, while NDP Leader Jagmeet Singh urged voters who care about fighting climate change not to vote Liberal. Trudeau said the Liberals are the only ones who can stop a Conservative government, and while not specifically naming the right-wing People's party, O'Toole said a vote for anyone other than the Conservatives is a vote for Trudeau.