When Congress voted in March to block FCC privacy rules and let internet service providers sell users’ personal data, it was a coup for the telecom industry. Now, the nonprofit, pro-privacy group Fight for the Future is publicizing just how much the industry paid in an attempt to sway those votes.

The group unveiled four billboards, targeting Reps. Marsha Blackburn and John Rutherford, as well as Sens. Jeff Flake and Dean Heller. All four billboards, which were paid for through donations, were placed in the lawmakers’ districts. “Congress voting to gut Internet privacy was one of the most blatant displays of corruption in recent history,” Fight for the Future co-founder Tiffiniy Cheng said in a statement on the project.

The billboards accuse the lawmakers of betraying their constituents, and encourage passersby to call their offices.