Acting President of the United States On April 4, 1841, only one month after his inauguration, President William Henry Harrison died. He was the first U.S. president to die in office. Afterward, a constitutional crisis ensued over the Constitution's ambiguous presidential succession provision (). Shortly after Harrison's death, his Cabinet met and decided that Vice President John Tyler would assume the responsibilities of presidency under the title "Vice-President acting President". Instead of accepting the Cabinet's proposed title, however, Tyler asserted that the Constitution gave him full and unqualified powers of the office and had himself sworn in immediately as President, setting a critical precedent for an
European Parliament Liaison Office with the US Congress European Parliament Liaison Office with the US Congress The European Parliament Liaison Office with the US Congress (EPLO) is the Washington, D.C. office of the European Parliament (EP) responsible for developing relationships between the US Congress and the European Parliament on issues calling for trans-Atlantic legislative and political cooperation. It attempts to build a trans-Atlantic network of legislators and legislative staffers focused on issues of mutual concern. Former European Parliament President Jerzy Buzek inaugurated the office on April 29, 2010. EPLO is the only European Parliament office outside the European Union, residing at 2175 K Street, N.W. Washington, D.C. In