Democrats from both the House and Senate want newly minted Speaker Paul Ryan (R-Wis.) to schedule a vote on campaign finance reform legislation.

"Mr. Speaker, if you are truly serious about restoring faith to this institution, then we ask that you allow Congress to vote on the DISCLOSE Act, which will bring some much-needed transparency to our campaign finance system," they wrote in a Tuesday letter.

However, the odds of a vote during Ryan's Speakership appear slim given that the Wisconsin Republican has expressed opposition to the measure in the past.

ADVERTISEMENT

Rep. Chris Van HollenChristopher (Chris) Van HollenRoberts under pressure from both sides in witness fight Parnas pressure grows on Senate GOP Overnight Defense: GAO finds administration broke law by withholding Ukraine aid | Senate opens Trump trial | Pentagon to resume training Saudi students soon MORE (D-Md.) and Sen. Sheldon WhitehouseSheldon WhitehouseSanders defends vote against USMCA: 'Not a single damn mention' of climate change The Hill's Morning Report — President Trump on trial Overnight Energy: Schumer votes against USMCA, citing climate impact | Republicans offer details on their environmental proposals | Microsoft aims to be carbon negative by 2030 MORE (D-R.I.) have pushed their bill, known as the DISCLOSE Act, for years to no avail. Their measure would expand campaign finance reporting requirements for corporations, unions and outside groups, such as mandating groups to report donations of $10,000 or more within 24 hours to the Federal Election Commission. 

Under the Supreme Court's 2010 Citizens United decision, corporations can contribute funds through independent expenditure committees such as super-PACs that accept unlimited donations. Such organizations do not always reveal who their donors are.

Apart from Whitehouse and Van Hollen, who is running for Senate, the letter's signatories included Democratic Reps. Steve Israel (N.Y.) and John Sarbanes (Md.), as well as Sens. Chuck Schumer (N.Y.), Ed Markey (Mass.), Debbie Stabenow (Mich.), Sherrod Brown (Ohio), Tom Udall (N.M.), Mark Warner (Va.) and Elizabeth Warren (Mass.).

Ryan has received multiple lawmaker requests in recent days to bring up legislation that didn't make it to the House floor during his predecessor's tenure. Last week, a bipartisan coalition of House members called on Ryan to schedule a vote to formally authorize U.S. forces fighting the Islamic State in Iraq and Syria.