Mayor Bloomberg’s gun-trol group, taking a page from the NRA playbook, announced yesterday that it will begin scoring Congress members on the issue.

“For too long, the only voice that has been loud enough to influence Congress has been the Washington gun lobby,” Bloomberg said.

Mayors Against Illegal Guns issued warning letters putting lawmakers on notice that the scores will be drafted in time for next year’s mid-term elections.

Meanwhile, DC Dems said they’d swayed enough GOPers to beat a filibuster and take a gun-control vote tomorrow.