OTTAWA — One year ago today, Canadians elected to put Prime Minister Justin Trudeau’s Liberals on a shorter leash, returning them to government but with only a minority of seats in the House of Commons. It has been a year of unprecedented calamity and crisis. So it seems somehow fitting that the anniversary will be marked by a confidence vote today in the Commons that will decide whether to plunge Canadians into another election in the midst of the worst global pandemic in a century. Here’s a look back at the top five things the government has had to contend with in the first year of its second mandate: