Former Binghamton Mayor Matt Ryan has officially filed to run for Broome County Sheriff under the Working Families Party. Ryan served as Binghamton Mayor from 2006-2013 and a public defender for 15 years. He entered the race against incumbent Sheriff David Harder, who is seeking his 6th term as Sheriff. He’s been the Broome County Sheriff for 20 years now, beginning in 1998. Ryan says he thinks he can have a big impact on offenders who are preparing to re-enter society.