Essex County Executive Joseph DiVincenzo, left, with power broker George Norcross on Tuesday at the delegates breakfast.Thomas P. Costello/Asbury Park PressGeorge Norcross, center, waits to testify for the first time before the New Jersey Senate select committee on Economic Growth Strategies in Trenton on November 18, 2019.Amy Newman/NorthJersey.comGeorge Norcross is well-known in South Jersey and…