On February 21, 2018, Williams & Connolly presented oral argument to the United States Supreme Court on behalf of the petitioners in Dahda v. United States, No. 17-43, a case concerning whether the federal wiretap statute requires the suppression of evidence obtained as a result of a wiretap order that exceeded the court’s territorial jurisdiction. A Kansas district court denied petitioner’s motion to suppress the wiretap evidence and the Tenth Circuit affirmed the decision. The petitioners argued that the original orders authorizing out-of-state wiretap interceptions renders the orders facially deficient under Title III of the Wiretap Act. It was Kannon’s 22nd argument before the Supreme Court and his fourth argument since the beginning of 2017. Along with Kannon Shanmugam, Amy Saharia, Allison Jones Rushing, Luke McCloud, and Liat Rome worked on the case for petitioners.