In a move that mixes pure politics with weedy congressional procedures, Senate Democrats are seeking to force a vote to overturn a Trump administration rule that they say will make it harder to enroll in Affordable Care Act health plans and sharply raise out-of-pocket costs for those who do.

The measure is unlikely to pass in the Republican-controlled Congress, but Democrats could use the vote against their opponents on the campaign trail.

When the ACA rule was released in May, the Trump administration touted it as a means to combat enrollment fraud, lower premiums for some people, and offer a wider range of insurance plans, including ones with no set network of doctors or hospitals.

But many Democrats warned the changes would hurt consumers already suffering from high healthcare costs as well as higher prices for gas, groceries, and other household needs. Estimates from the administration found the regulation, called a notice of benefit and payment parameters, could cause up to 2 million people to lose ACA coverage.

Senate Minority Leader Chuck Schumer and fellow Democratic Sens. Tammy Baldwin of Wisconsin and Ron Wyden of Oregon plan to introduce on Wednesday a Congressional Review Act resolution to block the rule.