Binghamton's former mayor announces his candidacy for Broome County Sheriff.

Matt Ryan officially filed his petitions Tuesday, and will be running with the Working Families Party.

He previously served as Binghamton Mayor from 2006 to 2013.

Prior to his time in office, Ryan served as a public defender for 15 years.

He says it's time to address overcrowding at the jail, and look for new ways to treat both violent and non-violent criminals.

Ryan is challenging current Sheriff David Harder, who has held the position since 1998.