The American Civil Liberties Union is demanding that Portland International Airport accept terminal advertising that is part of a campaign against legislation to increase logging on federal forests.
Oregon ACLU director Dave Fidanque said Thursday the Oregon Constitution prohibits government censorship of speech, including political speech.
The ad was submitted by Oregon Wild in a campaign to defeat a bill in Congress to increase logging on federal forests, particularly the so-called O&C lands in Western Oregon.
Airport spokeswoman Martha Richmond says the airport has the power under state and federal law to restrict the placement of ads on religious and political issues, in order to maintain neutrality.
A similar case involving ads on buses in Portland is pending in the Oregon Supreme Court.