BANGOR DAILY NEWS • September 16, 2020Opponents of Central Maine Power’s proposed corridor launched a second referendum bid on Wednesday intended to pressure lawmakers to overturn the $1 billion project, but it could face issues similar to an initial bid struck from the 2020 ballot. The corridor through western Maine that would take hydropower from Quebec to the regional grid is federal permits and local approvals away from construction after a prior referendum scheduled for November was deemed unconstitutional by Maine’s high court last month. Their latest initiative would require the Maine Legislature to take a two-thirds vote to approve any transmission lines in the future and require another two-thirds vote to approve the use of public lands for such projects.