It went well. I met with the Senator and one of her aides (a woman that I knew through the campaign) so it was a very relaxed interview. We discussed what the position would entail (constituent services, assisting legislative director, media tracking, pretty much everything else to some degree) and I said I was fine with the duties and would be very excited to get the job.
I wouldn't go quite so far as to say I'm a shoo-in (shoe-in?), but I can't think of any good reasons why I wouldn't get the job. My title, if I did get it, would be Legislative Aide.
They're hoping to make a decision by the end of the week, so I should know in a few days. I'm certainly keeping my fingers crossed.