Prime Minister Justin Trudeau, alongside Liberal MPs (from left) Marwan Tabbara and Bardish Chagger meet with Region of Waterloo mayors and delivers brief opening remarks in Kitchener, Ont., on Wednesday, April 17, 2019. Trudeau is remaining tight-lipped about whether a former Liberal member of Parliament now facing criminal charges is or has ever been investigated by the Liberal party. THE CANADIAN PRESS/Christopher Katsarov