What We're Following This Afternoon

Panama Papers, cont’d: Iceland’s prime minister became the first victim of the news reports on the leaked documents. Sigmundur David Gunnlaugsson stepped down today over revelations about him in the papers. The country’s president and Gunnlaugsson’s coalition allies must approve the move.

Wisconsin votes, cont’d: Our Politics team says: “GOP elites have cast doubt on Trump’s ability to take the well-mannered state on Tuesday. Meanwhile, Sanders will make a bid for the survival of his campaign.” Our live coverage is here.

Obama on inversions: The president criticized companies that move their headquarters overseas to avoid taxes. Obama’s remarks came a day after the U.S. Treasury Department outlined rules to make inversions—the process by which American companies merge with foreign ones in order to reduce their U.S. taxes—more difficult.

News from the morning here