Peter Zimonjic, CBC News »

“While I remain proud of the program the party built and the values we brought forward during this campaign, I recognize that we were not able to break through in a way that could shift the course of our country — and that is a responsibility I must carry,” he said in a letter posted online.

“Twice now, I have failed to convince my fellow citizens to send me to Ottawa,” he said. “I therefore hereby submit my resignation as co-Leader of the Green Party of Canada, effective immediately.”