Yes, at least smart casual.
Cocktail attire, no hats.
Pretty sure I showed up wearing nice jeans and decent leather boots. Generally the idea is not to show up looking like a bum. Smart casual is fine.
No open toed shoes for men. No sportswear, if i remember correctly.
Yes raincoat if you are Republican
Smart casual for sure, cocktail attire is pretty usual but not required
I concur with the prior. Smart causal is best
Dress nicely
I've worn jeans and a nice button down (untucked) multiple times with no issues
Very least smart casual.
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