Republicans have said Americans shouldn’t worry if the Supreme Court strikes down the Affordable Care Act next year, because they’ve offered their own legislation to protect people with preexisting medical conditions.

However, the bill being touted by the GOP’s most politically endangered Senate incumbents would significantly weaken those protections. Among other things, the legislation authored by Sen. Thom Tillis (R-NC) permits insurers to avoid existing caps on out-of-pocket costs for patients, institute annual or lifetime caps on spending, circumvent coverage requirements for essential benefits, and charge women higher premiums than men.

That could be a lucrative windfall for the insurance industry that has already been recording outsize profits during the COVID-19 pandemic. That same industry has been funneling big money to the ten Republican senators who are in competitive reelection battles and who are among the cosponsors of the legislation. Those incumbents have vacuumed in almost $2.6 million from insurance industry donors, according to data compiled by the Center for Responsive Politics.