Yes, his mother actually dressed him up like that as a kid and no that is not Chris Christie in the background.
The bag fish is a debate between who would win in a fight. Stephen Aureli with two stale baguettes or Charles Keating with one swordfish. You will see the wedding party and several guests wearing either a swordfish or baguette pin to show their team. The couple is strongly team swordfish.
Yes he is, if you want to get the party started just give him some shots.