But the naive Canadians elected Justin, the Noble, to ‘lead’. He is in favor of unlimited refugees........when IS their next election for PM?
It's a Parliamentary system. The PM is the head of the ruling Party. If I recall, he's either appointed by his Party, or if he desires, he can call for a federal election to seek a fresh mandate. If his Party loses at the next election, a new PM is chosen.
Since May 2007, the Canada Elections Act provides for a general election to be held on a fixed date: the third Monday of October in the fourth calendar year following the previous general election. As the last election took place on October 19, 2015, the next fixed election date is October 21, 2019.