A few minutes ago i was re-attaching my rear wheel and noticed that it was rubbing the brake. When i looked down to align it using the chainstays as a guide it appeared to be centered. Basically, it seems like the wheel is leaning to the left a bit. I spent a lot of time looking over the frame and dropouts and nothing looks bent to the naked eye.
Any guesses or suggestions?
EDIT: The "lean" is pretty major. It's actually pushing the left brake over as far as it will go.