Washington state's attorney general says Facebook and Google violated its campaign finance laws.
Gary Hershorn, Getty ImagesWashington state has sued Facebook and Google for allegedly failing to maintain information about who buys election ads.
State Attorney General Bob Ferguson says the companies violated state campaign finance law, prompting him on Monday to seek injunctions for the companies' alleged failure to disclose ad spending in state elections since 2013.
Ferguson posted copies of the lawsuits against Facebook and Google on his site.
Washington candidates and political groups reported advertising payments of about $3.4 million in payments to Facebook and $1.5 million to Google in the last decade, according to the state Public Disclosure Commission.
The state's campaign finance laws require commercial advertisers that sell political advertising to maintain information about those who purchase it, and the advertisers are required to make that information publicly available.
"Washington's political advertising disclosure laws apply to everyone, whether you are a small-town newspaper or a large corporation," Ferguson said in statement. "Washingtonians have a right to know who's paying for the political advertising they see."
Facebook says it is in contact with Ferguson's office and actively explaining its ad transparency features.
"The tools we are introducing set a new standard for transparency in digital advertising. We are eager to hear people's feedback as they use these features and will continue to explore how to build upon them to ensure people know who is behind the political ads they see on Facebook," Rob Leathern, Facebook's director of product management, responded in a statement.
"Attorney General Ferguson has raised important questions and we look forward to resolving this matter with his office quickly."
Google didn't immediately respond to a request for comment.
Last Thursday, Facebook and Twitter added verification, disclosures and additional information to political ads on their platforms.
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