A dark money group funded by Big Pharma is bankrolling ads boosting the conservative House Democrats who are trying to weaken the party’s plan to allow Medicare to negotiate lower drug prices. Additionally, a separate pharma-funded foundation is suddenly sponsoring newspaper ads thanking one of the Democrats for his work on prescription drug policy.

The new ad campaigns highlight the lengths the pharmaceutical industry is willing to go in order to derail legislation that could cut into their bottom line. If Big Pharma’s efforts are successful, it will prevent the government from saving tens of billions annually and stop health care reforms that would cut prices on expensive drugs by more than 50 percent.

Last week, the Washington-based nonprofit Center Forward started running digital ads touting six Democratic lawmakers who are trying to replace Democrats’ long-promised prescription drug pricing bill with far weaker provisions: Representatives Scott Peters (CA), Kurt Schrader (OR), Kathleen Rice (NY), Stephanie Murphy (FL), Lou Correa (CA), and Josh Gottheimer (NJ).