An anonymous reader writes: New York, California, and five other U.S. states have joined a lawsuit initiated by the Department of Justice that would block AT&T's merger with T-Mobile. 'The revised filing comes ahead of a court hearing next week, when the two sides are scheduled to discuss the prospects of a settlement. AT&T has said that it will contest the Justice Department’s lawsuit, while also seeking a potential settlement.' CNet notes that 'States don't have the power to block the deal, but they can influence the federal regulators and make it more onerous if AT&T attempts to negotiate for concessions to close the deal. They can also slow down the process with their own lawsuits.'