WASHINGTON ― Progressive advocacy groups are furious about Supreme Court Justice Brett Kavanaugh voting Thursday to let an anti-abortion law take effect in Louisiana. But they are directing their ire at another person too: Sen. Susan Collins (R-Maine).

Collins, who is up for re-election in 2020, was pivotal to Kavanaugh’s narrow October confirmation to the court. All but one Democrat, Sen. Joe Manchin (W.Va.), voted against Kavanaugh, in large part out of concerns that he would roll back abortion rights. Collins, who says she supports abortion rights, defended her vote by saying she believed he would follow Supreme Court precedent ― that is, preserve Roe v. Wade.

But Kavanaugh voted Thursday to let a Louisiana law take effect that would have left the state with just one physician allowed to perform abortions ― a break from precedent, as the law is virtually identical to a Texas anti-abortion law that the Supreme Court struck down in 2016. He was on the losing side of the court’s 5-4 decision, in which the majority said the restrictions must remain on hold while challengers appeal a lower court decision in favor of the law. But Kavanaugh took the extra step of writing a dissent, saying he would have let the law take effect.

Demand Justice, a progressive judicial advocacy group, is already up with a digital ad this weekend in Maine highlighting Collins’ vote for Kavanaugh. Titled “It Was All a Sham,” the Facebook ad features video footage of Collins shaking hands with Kavanaugh and audio of her voice saying she doesn’t believe Kavanaugh will weaken abortion rights.

“Collins promised to protect women’s rights,” read words across the screen. “It was all sham.”