BREAKING: Senate votes 50-49 to overthrow new Treasury Dept policy that no longer requires some 501(c) tax-exempt nonprofits—including politically active "dark money" groups—to disclose donor names & addresses (which already were not public under prior IRS policy) in tax returns. pic.twitter.com/tkQ62fvW1V— Anna Massoglia (@annalecta) December 12, 2018