MHB represents several Seattle citizens accused of Communist sympathies in front of the House Un-American Activities Committee, including steelworker Eugene Dennett, who famously knitted socks as Committee members questioned him.

MHB represents Jehovah's Witnesses, Quakers, and others who are conscientious objectors to the draft based on their religious beliefs.

MHB represents University of Washington faculty who refused to sign loyalty oaths swearing they were not "subversive persons." In Baggett v. Bullitt, the U.S. Supreme Court held the oaths were unconstitutional.

MHB successfully represents the Seattle school district in its efforts to integrate Seattle's public schools by challenging an unconstitutional ballot initiative designed to stop integration.

MHB successfully challenges a law requiring Washington residents to pass a test of English language skills to obtain a driver's license. The court declares the law unconstitutional.

MHB successfully challenges a Washington Department of Corrections policy allowing male guards to conduct random, full-body searches of female prisoners without cause. An en banc panel of the Ninth Circuit Court of Appeals held the policy was unconstitutional.

MHB wins Kalina v. Fletcher at the U.S. Supreme Court, establishing that prosecutors are not protected by absolute immunity and may be sued when they personally issue probable cause certifications that violate the Constitution.

MHB wins a $1.3 million jury verdict for the owner and manager of The Newstand, a Bellingham magazine store, whose First Amendment rights were violated when Whatcom County officials ordered them to stop selling a magazine the County deemed offensive.

MHB represents the family of John T. Williams, a deaf Native woodcarver shot and killed by a Seattle police officer while crossing the street holding his carving knife. The shooting precipitates federal oversight and reform of the Seattle Police Department.

MHB wins Karl v. City of Mountlake Terrace at the Ninth Circuit Court of Appeals, establishing that an employee's testimony in a lawsuit exposing government misconduct is a matter of public concern subject to First Amendment protection.

MHB and ACLU attorneys working from the hallways of Sea-Tac Airport secure an emergency order preventing the deportation of two individuals under the first version of the Trump Administration's "travel ban."

MHB wins a $15 million jury verdict for the family of Leonard Thomas, an unarmed black man killed by a SWAT sniper while holding his four-year-old son. The verdict is one of the largest civil rights verdicts in Washington history and one of the largest police shooting verdicts nationwide.