OTTAWA—Gov. Gen Mary Simon has agreed to Prime Minister Justin Trudeau’s request to dissolve Parliament, triggering an election campaign amid a fourth wave of COVID−19 and over opposition accusations it is reckless and unnecessary. The Liberal party leader visited Rideau Hall Sunday morning to ask Simon to pull the plug on the minority Parliament and send Canadians to the polls on Sept. 20. Trudeau said at a news conference after meeting Simon that his government did not expect COVID−19 but it focused on supporting Canadians and small businesses throughout the pandemic, delivering the Canada Emergency Response Benefit and wage subsidy for those hard−hit by the crisis. Canadians need to choose how the country finishes the fight against COVID−19, he said. “In this pivotal, consequential moment, who wouldn’t want a say? Who wouldn’t want their chance to decide where our country goes from here?” Trudeau asked. “As much as we’ve done …