The Washington exemption is at the bottom of the page.
10.a Ads Related to Politics or Issues of National Importance

Advertisers can run political, election related and issue ads, provided the advertiser complies with all applicable laws and the authorization process required by Facebook. Where appropriate, Facebook may restrict ads related to politics and issues.

Is made by, on behalf of or about a current or former candidate for public office, a political party, a political action committee or advocates for the outcome of an election to public office; or
Relates to any election, referendum or ballot initiative, including “get out the vote” or election information campaigns; or
Relates to any national legislative issue of public importance in any place where the ad is being run; or
Is regulated as political advertising.
Disclaimer, disclosure and ad labeling;
Blackout periods;
Foreign interference; or
Spending limits and reporting requirements.