State Rep. Frank Dermody leads the House Democratic Caucus, having been re-elected every two years since he first won a House seat in 1990. But he might not be able to vote in the Nov. 6 general election. The Oakmont lawmaker on Wednesday said he received a letter from Secretary of the Commonwealth Carol Aichele suggesting he might not have adequate voter identification to cast a ballot under the state’s new voter-identification law. The department recently compared voter lists with databases from PennDOT, which issues the primary form of acceptable photo ID — a driver’s license. On his driver’s license, the lawmaker is Frank J. Dermody. His given name, however, is Francis J. Dermody. He said he has been trying to shed “Francis” since he was 16.