The Working Families Party won't release its membership's vote on who to endorse for president - Bernie probably won... If you believe, as is obvious, that the reason WFP won’t release a membership vote total this time is because Warren did not win the membership vote, then this means Warren got anywhere from 22 to 40 percent of the member vote. This further means that 82 to 100 percent of the WFP leadership voted for Warren.