OTTAWA – The federal government is investing at least $2.7 billion to build more than 18 housing projects across Toronto. At a media event with Toronto Mayor Olivia Chow on Wednesday, Prime Minister Mark Carney said the federal government will be investing the funds over the next three years. THE CANADIAN PRESS/Sean KilpatrickThe prime minister said construction will begin on roughly 4,500 new homes by the end of the year. “For decades, the simple fact is Toronto didn’t build enough housing and too much of what was built was unaffordable for most Torontonians,” said Carney. While speaking at the event Wednesday, the prime minister noted that his TelePrompTer had stopped working.