Internship Opportunities
Each of these web pages provides searchable criteria for Internships in DC.
You should begin your search early for the best available internship opprtunies. Many deadlines are in August. You can apply for an internship with a company/political office before applying for department funding. In fact, this improves your chances of getting department funding.
Idealist.org - for a listing of internships with Non-Profit organizations
http://carnegieendowment.org/about/jr-fellows
https://www.csis.org/about-us/internships
https://governor.kansas.gov/serving-kansans/internship/internship-details/