By Dylan Robertson Prime Minister Mark Carney held a meeting with hundreds of First Nations chiefs Thursday, amid widespread skepticism and frustration over his controversial major-projects legislation. Bill C-5 gives the federal government sweeping new powers to speed up permitting for what the Liberals call “nation-building projects.” Carney says Bill C-5 is needed to shore up the economy in the face of a trade war with the United States, while opponents call it a massive power grab. Here’s what’s C-5 does and what people are saying about it. What problem is this trying to solve? Canada has built few large projects over the past decade. That has led Conservatives, some provinces and some industry groups to argue that Ottawa’s regulatory burdens are holding back growth. The Liberals tried to streamline…