.Loading...If Cassidy Hutchinson’s blockbuster assertions Tuesday prove to be a breakthrough in the Jan. 6 investigation, it would not be the first time a high-profile congressional hearing hinged on the testimony of a little-known aide. In the Watergate hearings, presidential scheduler Alexander Butterfield first confirmed the Nixon tapes. Lt. Col. Oliver North’s secretary, Fawn Hall, testified that she helped her boss shred documents in the Iran-contra affair. And Linda Tripp, a disgruntled former executive assistant, proved crucial in Bill Clinton’s impeachment. Watergate,...….Loading...If Cassidy Hutchinson’s blockbuster assertions Tuesday prove to be a breakthrough in the Jan. 6 investigation, it would not be the first time a high-profile congressional hearing hinged on the testimony of a little-known aide. In the Watergate hearings, presidential scheduler Alexander Butterfield first confirmed the Nixon tapes. Lt. Col. Oliver North’s secretary, Fawn Hall, testified that she helped her boss shred documents in the Iran-contra affair. And Linda Tripp, a disgruntled former executive assistant, proved crucial in Bill Clinton’s impeachment. Watergate,...WW…