WASHINGTON ― Sen. Susan Collins (R-Maine) defended her vote to confirm Supreme Court Justice Brett Kavanaugh on Tuesday despite his vote in favor of an anti-abortion law in Louisiana last week.

Kavanaugh joined three other conservative justices in dissenting to a Supreme Court order that blocked an anti-abortion Louisiana law from going into effect; the law required doctors performing abortions to have the authority to admit patients to nearby hospitals.

Opponents of that requirement say that it would have dramaticaly reduced eligible doctors, leaving the state just one physician to perform abortions. The law is virtually identical to a Texas anti-abortion law that the Supreme Court struck down in 2016 with the help of former Justice Anthony Kennedy, who was succeeded by Kavanaugh last year.

Progressive advocacy groups are furious that Collins, who says she supports abortion rights, voted in favor of Kavanaugh’s confirmation. They say his decision to greenlight a law that would limit access to abortion only confirms their fears that he presents a long-term threat to Roe v. Wade, the major abortion rights precedent. Over the weekend, advocacy group Demand Justice aired digital ads in Maine slamming Collins for her Kavanaugh support.

Collins insisted on Tuesday that Kavanaugh won’t overturn Roe despite his anti-abortion vote last week, however. The senator argued that the justice took a “logical approach” in his dissent to the case and said she did not believe he contradicted precedents established by Roe and Whole Woman’s Health v. Hellerstedt, which held that states can’t place undue burdens on women seeking an abortion.

“I don’t understand how this is being viewed as somehow overturning Roe v. Wade except by people on the far left who are looking for anything,” Collins told HuffPost on Tuesday.

In his dissent to the order, which he wrote separately from the other conservatives on the court, Kavanaugh argued the issue hinged on whether the doctors who perform abortions at the state’s clinics can obtain admitting privileges to a hospital within 30 miles of the clinic where they provide abortion care. Abortion providers in the state said that the Louisiana law would severely curtail access to abortions because of the requirement to the point where many clinics would be forced to close forever. Kavanaugh, however, argued that the state had sufficient time to resolve the matter of admitting privileges before the law took effect. If the doctors cannot obtain admitting privileges, he added, they can return to court.

“What he is simply saying is that if during that period of time the physicians do not get their privileges, they can come back to the court without prejudice. I think that was a logical approach, and he committed to following the precedent that was established in Whole Woman’s Health,” Collins added.