Mario Loyola Almost the minute after the White House released its 110-page brief for the Senate impeachment trial, careful observers noticed a contradiction between the White House counsel’s view and Attorney General William Barr’s. The White House brief argues that there can be no impeachable “abuse of power” without a violation of established law. Meanwhile, in a memorandum to senior Justice Department lawyers written while he was still a private citizen in 2018, Barr argued that abuse of power can indeed be impeachable even if there is no crime. As a purely legal matter,…