A conservative advocacy group is launching a seven-figure ad campaign across dozens of House districts to rally lawmakers against Democratic efforts to allow Medicare to directly negotiate drug prices.

The $2.5 million in radio, digital and mailed ads from the American Action Network (AAN), first shared with The Hill, call on Congress to reject what the group says are “government price controls” placed on Medicare’s prescription drug benefit, called Part D. 

The ads are meant to head off an attempt by Democrats in the House to pass legislation aimed at lowering prescription drug prices by allowing Medicare to negotiate prices. They will air in 35 House GOP districts. 

{mosads}The measure, which Speaker Nancy Pelosi (D-Calif.) and House leadership have been working on for months, has at times sparked tensions between the moderate and progressive wings of the Democratic Party. 

The ads from AAN argue that government involvement would lead to reduced access to life saving medications and prescription drug rationing.

“Key liberals in Congress are pushing a socialist agenda for America and it starts with seniors losing choice and access to the most effective drugs in Medicare,” says one radio ad. “Their plan means prescription drug rationing, government price fixing and bureaucrats controlling your access to new treatments.”

Conservatives have also criticized legislation offered by Senate Finance Committee Chairman Chuck Grassley (R-Iowa) that is backed by the administration. It includes a provision that would impose a limit on drug price increases in Part D.

The legislation would force drug companies to pay money back to the government if their prices rise faster than inflation.

Grassley has said that his bill should be much more palatable to the right, because it could stop Trump from negotiating with Pelosi.