 Complete the following phrase:  From April 25, 1869 to July 20, 1870 Pierrepont served as U.S. Attorney for the Southern District of New York appointed by President Ulysses S. Grant. As U.S. Attorney, he prosecuted Cuban revolutionaries for violation of the Neutrality Act. On Tuesday June 15, 1869, U.S. Attorney Pierrepont arrested and indicted members of the Cuban Junta, an organization to aid the 