FILE - In this March 1, 2012 file photo, Rep. Anne Kaiser, D-Montgomery, an openly gay member of the Maryland General Assembly, holds Natalie Vincent, 10 months, the daughter of a member of Maryland Gov. Martin O'Malley's staff, after O'Malley signed the Civil Marriage Protection Act in Annapolis, Md. (AP Photo/Patrick Semansky, File)

Photo by: Patrick Semansky

FILE - In this March 1, 2012 file photo, Rep. Anne Kaiser, D-Montgomery, an openly gay member of the Maryland General Assembly, holds Natalie Vincent, 10 months, the daughter of a member of Maryland Gov. Martin O'Malley's staff, after O'Malley signed the Civil Marriage Protection Act in Annapolis, Md. (AP Photo/Patrick Semansky, File)