bill_id,bioguide_id,full_name,party,state,sponsorship_date,is_original_cosponsor
112-s-1963,M001170,"Sen. McCaskill, Claire [D-MO]",D,MO,2012-05-22,0
112-s-1963,L000550,"Sen. Landrieu, Mary L. [D-LA]",D,LA,2012-01-23,0
112-s-1963,B001265,"Sen. Begich, Mark [D-AK]",D,AK,2012-01-23,0
112-s-1963,C000286,"Sen. Chambliss, Saxby [R-GA]",R,GA,2011-12-13,0