Research at GW, especially for STEM, is sparse due to the majority-adjunct teaching faculty. But an internship is definitely possible. Sign up for the House of Representatives internship listserv; those are usually pretty easy to come by. However, the majority of freshman internships are unpaid and are pretty far from glamorous -- social media intern (updating Twitter, essentially), communications, and/or marketing.
What industry are you interested in, and do you have any relevant experience from HS to back that interest up?
I know that internship is super important, but hard, for freshman students.
Not really. The good internships come in your third and fourth year.