“…Despite political science research directly linking cosponsorship to the texts of bills and speeches in congress, cosponsorship has so far received little to no attention from the NLP community. However, recent advances of natural language processing [10,38,47,56] provides tools to address numerous social science questions related to legal [45,46,53], con icts [9,43] and political studies [14,18,33,39]. Among these studies, the prediction of roll-call votes has received great attention.…”