DENVER, Colorado, Nov. 7 -- The Colorado Public Interest Research Group issued the following news release: Voters in the Denver metro region approved the Regional Transportation District (RTD) 7A ballot question, allowing the transit agency to keep the revenue it raises every year instead of refunding some of it under Colorado's Taxpayer Bill of Rights (TABOR). At risk was as much as 10% of RTD's budget, about $60 million a year. A broad coalition came together as part of the Keep Transit Mov  more