Mark Carney's official campaign launch for Liberal leader included high praise from supporters and some unexpected moments behind the scenes including a glitchy teleprompter, a mysterious limousine booking and police showing up on scene.

Mark Carney announced his bid to become leader of the Liberal Party of Canada surrounded by dozens of supporters in Edmonton on Thursday.

Mark J. Carney ’87 — a member of Harvard’s Board of Overseers, the University’s second-highest governing body — launched his campaign to become Canada’s next prime minister at a rally in Edmonton, Alberta Thursday afternoon.