This market will resolve to “Yes” if any lawsuit is initiated against Donald Trump in direct connection to Trump’s use of executive power to impose tariffs on foreign countries by March 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. “In direct connection to his use of executive power to impose tariffs on foreign countries” refers to any lawsuit alleging executive overreach in Trump’s use of tariffs or which otherwise questions the authority or legality of Trump’s past use of tariffs. Lawsuits seeking damages for Trump’s imposition of tariffs under the International Emergency Economic Powers Act (IEEPA) or otherwise seeking refunds for tariff fees paid under illegal tariff authority will count. Qualifying lawsuits filed against Donald Trump in his official capacity as President of the United States (e.g. lawsuits "v. the President of the United States”) or against the Trump Administration will count. An announcement of intent to sue or a legal threat will not qualify for a “Yes” resolution; a lawsuit must actually be filed in court. The primary resolution sources for this market will be official information from the relevant court. However, a consensus of credible reporting may also be used.