A district court judge ruled Metro will not have to run an American Civil Liberties Union advertisement that transit authorities deemed too political.

U.S. District Court Judge Tanya Chutkan denied a request Wednesday from the ACLU to force the Washington Metropolitan Area Transit Authority – which runs the Metro rail and bus system in the District – to immediately run an advertisement for the group’s June conference, WTOP reported.

Metro authorities rejected the ad after visiting a website shown on the poster, which explained the conference would advise ACLU members how to defend civil liberties.

Chutkan argued the ACLU’s case wouldn’t likely succeed if it moved on to a full trial. She said WMATA is within its legal rights to reject an ad based on the full context of the ad’s message – including additional information about the ACLU’s conference found on the group’s website, WTOP reported.

WMATA changed its advertisement policy in 2015 to prohibit political, religious and advocacy advertising.

“The court disagrees with the ACLU’s suggestion that WMATA is necessarily limited to the face of the advertisement in determining whether that advertisement fits within its guidelines,” Chutkan wrote.

The ACLU first sued WMATA last August for violating First Amendment rights because the authority did not approve an advertisement featuring the First Amendment written in different languages. Right-wing political commentator Milo Yiannopolous, the health network Carafem and animal advocacy group People for Ethical Treatment of Animals also filed suit against WMATA for rejected ads.

An ACLU spokesperson told WTOP that the group won’t appeal the decision because the conference is in early June.