Senate Democrats on Tuesday reintroduced transparency legislation that failed to pass in 2010 and again in 2012.
The measure would require all organizations that donate more than $10,000 to campaign ads disclose their donors. The reboot of the bill comes with about five months to go until the midterm elections.
"It goes with the democratic process for people to know who is behind particular causes and interests and candidates," Sen. Richard Blumenthal, D-Conn., said.
These Democrats say they aren't trying to overturn the Supreme Court's ruling on Citizens United v. FEC or the more recent ruling in McCutcheon v. FEC, they're just trying to amend it.
Senate Democrats acknowledged the Disclose Act has failed twice before, but are willing to try again.
"So that those who are pouring money into elections," said Sen. Elizabeth Warren, D-Mass., "at least have to be willing to stand up and admit that that's what they're doing."