1985 White House intrusion

The 1985 White House intrusion occurred on January 20, 1985 when Robert Allen Latta, a 45-year-old water meter reader, successfully entered the White House uninvited. == Background == Latta, of Denver, Colorado, held a master's degree in mechanical engineering and worked as a water meter reader for the Denver water department, where he held the Denver meter-reading record of 600 readings in a single day.

Source: Wikipedia — 1985 White House intrusion (CC BY-SA 4.0)