Congratulations! Those are both great choices.
W&L has the Washington Term which is seems like an incredible experience that sounds compatible with your interest.
Have you had an opportunity to sit in on classes at either school? I always think this is an excellent idea when looking at schools. Reach out to the admissions office to connect with a professor, and a student which may make the difference and put one over the top when you can’t visit. Best wishes to you!