After three federal election wins and just over nine years in office, Prime Minister Justin Trudeau announced his resignation on Monday. Trudeau had been facing mounting pressure within his party to step down, after many months of polls showing dwindling public support for the Liberal party and several key by-election losses.

Now, the Liberal Party has to choose a new leader while Parliament is prorogued.

The Globe’s senior political reporter Marieke Walsh joins The Decibel to explain what led to Trudeau’s exit and what comes next as political uncertainty now looms over Canada.

Questions? Comments? Ideas? Email us at thedecibel@globeandmail.com