Inside the Cooperative Arts and Humanities High School, Democratic incumbent Mayor Justin Elicker and Republican challenger John Carlson made their case for why they deserve the support of voters. On Tuesday night, New Haven's mayoral candidates took to the stage. In their first debate of the election season, they discussed affordable housing, crime, and education. Inside the Cooperative Arts and Humanities High School, Democratic incumbent Mayor Justin Elicker and Republican challenger John Carlson made their case for why they deserve the support of voters. Our redesigned local news and weather app is live! Download it for iOS or Android  -  and sign up for alerts. 