J Street U is a pro-Israel, pro-peace advocacy group on campus. The national conference brings together adult members of J Street as well as students from all of the J Street U chapters from around the country to learn and to advocate. It is a fun and inspirational weekend. This year the conference will be March 24-March 27, although it is definitely possible to leave early, so as not to miss class (last year we took an early morning flight on Monday back to campus).
To register check out http://www.wynjade.com/jstreet12/students/. JStreet will reimburse your travel costs and you can apply to Hillel to reimburse the $36 registration fee and the $30 housing costs using this form: http://fs8.formsite.com/stlhillel/form064841330/index.html (Your entire trip to DC will be completely free!)