Explainer: In likely tight Canadian vote, deciding who governs could take weeks

FILE PHOTO: Liberal leader and Canadian Prime Minister Justin Trudeau campaigns for the upcoming election, at the Botanical Garden of Montreal, Quebec, Canada October 16, 2019. REUTERS/Stephane Mahe/File Photo

OTTAWA (Reuters) - Opinion polls suggest no party will gain a majority of seats in the Canadian election on Oct. 21. That leaves the two frontrunners - Liberal Prime Minister Justin Trudeau and Conservative opposition leader Andrew Scheer - trying to govern with a minority. Six parties are contesting the election.

Here's how events could play out after the vote: