In the Supreme Court of the United States, Danny Birchfield, petitioner, v. North Dakota, respondent ; William Robert Bernard, Jr., petitioner, v. State of Minnesota, respondent : on writ of certiorari to the Supreme Court of North Dakota and the Supreme Court of Minnesota : brief amicus curiae of Downsize DC Foundation, DownsizeDC.org, United States Justice Foundation, [and 3 others] in support of petitioners /

The question presented is whether state laws that criminalize a driver's refusal to give consent to blood and breath tests violate the Fourth Amendment.