The bipartisan bill represents the latest step in Bridgeport’s nearly three-decade pursuit of a casino development. It does not yet have the support of Gov. Ned Lamont and faces other obstacles, like the threat of legal action, to passage and implementation. The bill allows the Mashantucket and Mohegan Pequot tribes, who run Foxwoods and Mohegan Sun casinos, to keep their plans for an East Windsor casino along I-91 — something Lamont hoped the tribes would abandon. The tribes have a compact with the state,dating to the early 1990s, that gives them an exclusive right to operate casino games, in exchange for them paying a quarter of their slot revenue to Connecticut.