Most Helpful Guy
You getting sworn in tomorrow? Congrats I did student government at my school for a bit. We could never fill all the senate seats though lol. I would say it is fine but dress more conservatively if you want to be cautious. Maybe go longer at the first meeting and see what others do.
Most Helpful Girl
I'd say go for knee-length pencil skirt or dress pants.
A mid-thigh pencil skirt COULD be ok, depending on many other things, but I wouldn't take the risk of being unappropriate for an important event like this.
I think the dress pants are a sure thing, but knee-length skirt is possible too.
Of course, no cleavage or over-tight clothes either :)