Mitch McConnell sure can pick the issues he takes a stand on. Despite being a true master of gridlock and inaction, he’s been very willing to take steps to erode campaign finance regulations: in May, he continued his long-standing opposition to sound campaign finance regulation by filing an amicus brief with the Supreme Court arguing for fewer federal limits on campaign donations, and last month the court granted him permission to participate in the upcoming oral argument of the case, McCutcheon v. FEC. Given that 90% of voters think there’s already too much money in politics, one might ask why McConnell’s advocating such an unpopular position so strongly.

Perhaps it’s unsurprising, then, that McConnell’s views are catching up with him. A poll released Tuesday by the Public Campaign Action Fund highlights what a terrible strategy this is for a candidate already facing a tough path to reelection: 53% of Kentucky voters had “very serious doubts” about his support for unlimited contributions, with 46% supporting his opponent Alison Lundegran Grimes to McConnell’s 40%. It was already clear that spending by wealthy special interests in politics is extremely unpopular, but it’s very encouraging to see indications that those who support unlimited spending might pay an electoral price for it. McConnell might think it’s worth it to continue taking these unpopular positions if corporations will keep spending on elections like his, but maybe he’s miscalculated here. It’s up to Kentucky voters to prove him wrong.