OpenSecrets.org @OpenSecretsDC
This cycle, a number of races, including the presidential contest, #NCSen & #IL14 have seen spending by "Pop-up" super PACs, which form after a file late and spend big immediately before an election, avoiding disclosing their funding until after voting https://t.co/OisK6R2kyO https://t.co/t3oFbs2wpk — PolitiTweet.org